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Journal articles on the topic 'Metalworking and machine industries'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 February 2022

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1

Gholami, Hamed, Muhamad Saman, Safian Sharif, Jauharah Md Khudzari, Norhayati Zakuan, Dalia Streimikiene, and Justas Streimikis. "A General Framework for Sustainability Assessment of Sheet Metalworking Processes." Sustainability 12, no. 12 (June 18, 2020): 4957. http://dx.doi.org/10.3390/su12124957.

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The sheet metalworking industries possess minimal knowledge in the area of sustainability despite having served as sub-contractors to various industrial sectors. This also highlights that suitable indicators for measuring the sustainability performance of sheet metalworking operations are poorly addressed. As sustainability assessment is regarded as a vital part of sustainable development, this paper has been aimed at establishing a general framework for sustainability assessment of sheet metalworking processes. The main attention was paid to two important processes—the cutting operations with a CNC turret punch press machine and sheet metal bending operations with CNC press brake machine. Stepwise guidelines to implement the proposed framework in sheet metalworking industries are consequently presented. Besides, this study contributes to developing an applicable sustainability indicator set for assessing such manufacturing processes. It makes a valuable contribution to advancing the narrow body of knowledge on the under-researched scope.

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Latyshevskaya, N. I., M. A. Alborova, L. A. Davydenko, and A. V. Belyaevа. "Working conditions and occupational risks of anterior eye pathology in metalworking machine operators." Russian Journal of Occupational Health and Industrial Ecology, no. 7 (August 2, 2020): 462–67. http://dx.doi.org/10.31089/1026-9428-2020-60-7-462-467.

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Introduction. The profession of “machine operator in metalworking”, one of the most common professions in various industries, characterized by a large volume of abrasive operations, accompanied by dust formation, which creates a potential for the occurrence of diseases of the visual organ.The aim of the study is to provide a hygienic assessment of working conditions and occupational risk of visual organ pathology in metalworking machine operators.Materials and methods. Observation groups — machine operators for metalworking of two training groups (experience up to 5 years, experience of 6–20 years). Two comparison groups (administrative and technical personnel of the enterprise) are formed according to the same age-experience principle.Results. The working conditions of machine operators were classified as class 3.2. taking into account the severity and intensity of the work process and the noise level (80 dBA) in the workplace. Nitrogen oxide, carbon monoxide, and manganese were registered in the air of the working area in concentrations below the permissible concentration (PC), and the aerosol dihydroxide was registered above the PC in 25.8% of cases. In the main working groups, diseases of the anterior segment of the eye were more often registered, among which dry eye syndrome (DYS) prevailed (94.1%), chronic blepharoconjunctivitis (79.9%), persistent corneal opacification (21.7%). There was an increase in the prevalence of detected diseases with an increase in work experience (p≤0.05). In machine operators, the frequency of inhibition of lacrimal formation and decreased stability of the tear film was recorded significantly more often, with increasing work experience, the degree of violation of lacrimal formation and stability of the tear film increased. The chances of detecting pathology of the anterior segment of the eye in machine operators are 5.9 and 3.5 times higher than in the comparison group. There are different forces of connection, increasing with the increase of work experience in the profession, between the working conditions of machine operators and the occurrence of SHG (relatively strong), with chronic blepharoconjunctivitis and persistent corneal opacity (medium strength), which suggests the professional conditionality of this pathology.Conclusions. The results obtained suggest that the pathology of the anterior segment of the eye is professionally conditioned in metalworking machine operators and necessitate the introduction of preventive measures aimed at protecting the visual organ.

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Lukjanova, Jelena, Olena Sushchenko, and Oleksandr Zyma. "Educated and Competent Staff as Important Factor of Innovation Development of Machine-Building and Metalworking Industry in Latvia." MATEC Web of Conferences 297 (2019): 06006. http://dx.doi.org/10.1051/matecconf/201929706006.

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This article deals with the problem of providing the machine-building and metalworking industry in Latvia with labor resources capable of ensuring the innovative development of the industry. Imbalance in the labor market has been shown, the tasks facing the Latvian education system are identified, the importance of training and development of personnel of the machine-building and metalworking industry enterprises is pointed out. The importance of lifelong learning was noted, since the fourth industrial revolution, the aging of population and the extension of the active working age dictate need for constant adaptation of the skills and abilities of workers. The main activities of enterprise in the industry to attract the interest of young people to relevant professions are considered, a number of existing projects of training and development staff of engineering enterprises has been shown.

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Burenin, V. V. "Treatment of dust-gas-air emissions from machine-tool and metalworking plants." Russian Engineering Research 30, no. 5 (May 2010): 524–27. http://dx.doi.org/10.3103/s1068798x10050217.

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5

Latyshevskaya, N. I., L. A. Davydenko, A. V. BelyaevA, and M. A. Alborova. "Features of awareness and perception of health risks by workers of an industrial enterprise (on the model of metalworking machine workers)." Profilakticheskaya meditsina 23, no. 1 (2020): 51. http://dx.doi.org/10.17116/profmed20202301151.

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Latyshevskaya, N. I., L. A. Davydenko, A. V. BelyaevA, and M. A. Alborova. "Features of awareness and perception of health risks by workers of an industrial enterprise (on the model of metalworking machine workers)." Profilakticheskaya meditsina 23, no. 1 (2020): 58. http://dx.doi.org/10.17116/profmed20202301158.

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7

Khan, Thawhid, Matthew Broderick, and Chris M. Taylor. "Investigating the industrial impact of hydraulic oil contamination on tool wear during machining and the development of a novel quantification methodology." International Journal of Advanced Manufacturing Technology 112, no. 1-2 (November 22, 2020): 589–600. http://dx.doi.org/10.1007/s00170-020-06370-y.

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AbstractWater based metalworking fluids (MWFs) commonly used for cooling and lubrication during machining are utilised in combination with cutting tools, work materials, fixtures and machine tools. However, they are an often overlooked component of the overall machining process, despite the fact that in some reported cases MWF costs were twice that of tooling costs. During its life cycle in a machine tool, the MWF is exposed to changes due to a range of factors which impact its quality and longevity. The key process variables (KPVs) reviewed in this study are MWF concentration, hydraulic (tramp) oil, solid particulates, water quality, MWF pH and microbial contamination. The aim of the present work is to highlight these KPVs which impact machining quality and health and safety, and to present industrially applicable measurement, monitoring and control (MMC) methods and techniques. This review is supported by a machining case study which demonstrates the impact of a single KPV—hydraulic (tramp) oil on MWF quality and machining output, and the need for applying MMC methods. Continuous hydraulic (tramp) oil contamination into the cutting fluid can cause tool life and wear to vary by 70%. A novel quantification methodology with gas chromatography was developed in this study to quantitatively measure hydraulic (tramp) oil contamination present within MWF and verified through experiments. The study overall highlights the need to apply a strict maintenance programme to increase the MWF lifetime and maintain performance for improved production, experimental process control and operator health and safety.

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8

Setti, Dinesh, Sudarsan Ghosh, and Venkateswara Rao Paruchuri. "Influence of nanofluid application on wheel wear, coefficient of friction and redeposition phenomenon in surface grinding of Ti-6Al-4V." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 232, no. 1 (March 11, 2016): 128–40. http://dx.doi.org/10.1177/0954405416636039.

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Difficulties in the grinding of Ti-6Al-4V originate from the three basic properties: poor thermal conductivity, high chemical reactivity and low volume specific heat of the material. Under severe grinding conditions, all these factors together lead to the accelerated wheel loading and redeposition of chips over the work surface. Redeposition and wheel loading have a significant effect on the surface finish, grinding forces, power consumption and wheel life. In this study, water-based Al2O3 nanofluid as metalworking fluid is applied during the surface grinding of Ti-6Al-4V under minimum quantity lubrication mode after dressing the wheel with different dressing overlap ratios. The severity of the redeposition over the work surface was observed by measuring various surface profiles taken perpendicular to the grinding direction at several locations on the ground surface. The nanofluid application was able to prevent redeposition over work surface that became evident from the measured surface finish parameters that results along the grinding direction. Coefficient of friction was estimated On-Machine using the measured forces for different wheel work speed ratios, depth of cut and dressing overlap ratios. The results showed the effectiveness of nanofluid in reducing friction at high material removal rate (i.e. high depth of cut and high speed ratio) conditions when compared to the dry environment. From the measured forces variation with respect to the number of passes, it became evident that, nanofluid application delayed the frequency of wheel loading and grit fracturing cycle, which leads to the increase in the wheel life.

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9

Platonov, Vladimir, and Igor Maizel. "Modernization of metalworking CNC machine-tools." Proceedings of Irkutsk State Technical University 23, no. 2 (February 2019): 285–95. http://dx.doi.org/10.21285/1814-3520-2019-2-285-295.

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10

Romaniuk, Nelia Yo. "The Role of Entrepreneurs and Entrepreneurship in the Economic Modernization of the South-East Ukraine: 1861–1914." Universum Historiae et Archeologiae 2, no. 1 (January 2, 2020): 97. http://dx.doi.org/10.15421/26190108.

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The purpose of the article is to investigate the peculiarities of the modernization of the South-East region of Ukraine in the latter half of the 19th and at the beginning of the 20th century as well as to specify the contribution of entrepreneurs in the formation of the production industry. Methods of research: analysis and synthesis of available information, logical-analytical, problematic-chronological, system-structural methods. The principles of historism, objectivity and consistency, which were the basis of the indicated research methods, made it possible to consider the essence of processes and phenomena, to keep track both of the manifestations of general patterns in the socioeconomic processes in the development of the South-East region of Ukraine and their specific character under the influence of entrepreneurial activity, and also to draw certain conclusions. Key findings: the contribution of entrepreneurs of the South-East Ukraine, which became an important factor in the acceleration of socioeconomic modernization during 1861–1914, is highlighted in the article. Heavy industry became the basis for the modernization in the context of reforms in the latter half of the 19th century, namely production industries related to the extraction of minerals and their processing. During this period, three powerful industrial centers formed: Donetsk coal and metal, Kryvyi Rih ironstone and Nikopol manganese. An important feature of the entrepreneurship development in the South-East region of Ukraine in 1861–1914 was the representation of all population strata: peasants, Cossacks, townsmen, intellectuals, merchants, nobles and foreign capital. They acted as private businessmen and co-owners of collective enterprises. The most common organizational form of entrepreneurship in this period were joint-stock companies, the role and number of which was constantly growing. Conclusions. At the beginning of the 20th century, the Donetsk and Krivyi Rih region became a powerful center of heavy industry (coal, metallurgy, metalworking, machine-building, and chemical). The result of entrepreneurial activity was an increase in production volumes, profitability, the creation of a large number of jobs, the improvement of organization and production technology. Practical value: is determined by the emphasis of the researchers on the need to comprehend the phenomenon of entrepreneurship, its historical lessons, taking into account the powerful factors of this phenomenon and its influence on the contemporary and future civilization development of Ukraine; it is recommended to be used by authors for writing articles, manuals and for development of special courses. Scientific novelty: consists in formulating and studying a relevant topic, which has not received a comprehensive study in historical science. The independent role of entrepreneurship in the capitalist economy at the regional level is shown for the first time; it was proved that the South-East region of Ukraine was the one where the preconditions for the development of private initiative were formed, and also the spread of market relations and entrepreneurship took place; the participation of entrepreneurs in economic modernization as well as the most profitable branches in the region are characterized. Originality: the generalization of experience, practices of profit-making economy of the entrepreneurial strata of the region is used. Type of article: descriptive.

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11

MIRER, FRANKLIN E., MICHAEL A. SILVERSTEIN, ROBERT PARK, and NEIL MAIZLISH. "Occupational Cancer in Metalworking and Transportation Equipment Industries." Annals of the New York Academy of Sciences 534, no. 1 Living in a C (June 1988): 387–93. http://dx.doi.org/10.1111/j.1749-6632.1988.tb30126.x.

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12

Shulaev, M. V., I. A. Khramova, and V. M. Emelyanov. "Pilot Testing of the Waste Metalworking Fluids Biosorption Treatment." Materials Science Forum 843 (February 2016): 259–62. http://dx.doi.org/10.4028/www.scientific.net/msf.843.259.

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Metalworking fluids are liquid wastes of the machines cutting, cooling, and lubrication operations coming in the form of emulsified oil. Waste metalworking fluids in the emulsified form are liberated into the environment through machining wastewater which becomes contaminated with microorganisms and results in a drastic problem of water pollution. To reduce its polluting biosorption the method of treating waste metalworking fluids was employed. An investigation into the anaerobic biological wastewater treatment was conducted for 50 days with the initial sludge dose 2.8 g/l in a horizontal tank with a drum-type mixing device. The results of this study indicate that the existing industrial-activated sludge plant could be used to treat waste MWFs under anaerobic conditions after the additional treatment by fermentation at a temperature of 32-37 оС with nutritional elements input at certain days. The efficiency of biosorption treatment using the granular diatomite as an adsorbent is insignificantly inferior to the system with granular activated carbon SKT-3. So it would be more reasonable to use the diatomite in industrial plants because it is significantly cheaper than the granular activated carbon and there are large quantities available. The COD reduction was significant but to achieve optimum performance further investigation is needed.

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Bushuev, V. V., V. V. Molodtsov, and V. A. Novikov. "Parametric Synthesis of Supply Drives for CNC Metalworking Machines." Russian Engineering Research 38, no. 6 (June 2018): 474–79. http://dx.doi.org/10.3103/s1068798x18060060.

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14

Chen, Shang-Liang, Hoai-Nam Dinh, Sheng-Jhih Fang, Yun-Yao Chen, and I.-Ching Li. "Design of a novel cloud-based metalworking supplier matching system." Advances in Mechanical Engineering 9, no. 1 (January 2017): 168781401668366. http://dx.doi.org/10.1177/1687814016683665.

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Traditionally, machine equipment manufacturers match new metalworking suppliers through yellow pages and websites, which is inefficient and not timely for supplier information transfer. In this article, a cloud-based supplier matching system is proposed to offer machine equipment manufacturers an efficient way to match suitable metalworking suppliers. A cloud architecture to enhance utilization of servers and simplified device management is designed. Two cloud services are designed in this system, including order-bidding service and order-cooperation service. A comparison result shows that the system can provide a flexible matching system for both metalworking suppliers and machine equipment manufacturers.

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15

Gilovoi, L. Ya, A. V. Krutov, and V. V. Molodtsov. "Influence of modular roller guides on the rigidity of metalworking machines." Russian Engineering Research 33, no. 8 (August 2013): 471–76. http://dx.doi.org/10.3103/s1068798x1308008x.

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16

Startsev, Alexander Igorevich. "Features of copper accumulation in the soils of different functional areas of Novokuybyshevsk." Samara Journal of Science 8, no. 2 (April 1, 2019): 67–71. http://dx.doi.org/10.17816/snv201982112.

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The vegetation of the Samara Region is characterized by a relatively high content of copper. This biogeochemical feature is typical for natural and technogenic transformed ecosystems of the region. Copper is included in the group of elements of the 2nd hazard class. At certain concentrations it is necessary for the normal functioning of all organisms, but with increasing concentrations in the environment or in food it shows toxicity. The technogenic sources of copper include metalworking and machine-building enterprises, fertilizers, road and rail transport, wastewater, products of incomplete fuel combustion and refining characteristic of the Samara Region. The peculiarities of copper accumulation and distribution in soils of urban areas of the region are insufficiently studied. Previously, such studies were carried out only in certain areas of Samara. The paper analyzes in detail the level of technogenic copper pollution of the soil cover in Novokuybyshevsk. Ecological and geochemical studies in Novokuybyshevsk were carried out for 3 years (2016-2018) on 7 stationary test plots in its different functional areas and on 1 background test plot. The objects of research were soil samples taken from the upper humus horizon (layer 0-10 cm). The quantitative content of copper in soil samples was determined by the method of inversion voltammetry. A comparative analysis revealed territories of Novokuybyshevsk with relatively high, medium and low levels of copper in the soil. The first group included the Park Dubki in its elevated part, the old residential area on Kirov Street, the roadside area at the intersection of Pobeda Avenue and Dzerzhinsky Street (93,3-90,7 mg/kg). The second group with an average copper content (71,0-73,3 mg/kg) included the square Elochki and a new residential area on Ostrovsky Street. The third group with a relatively low copper content (38,3-54,7 mg/kg) included three sample areas: the lowland part of the Park Dubki, the industrial zone and the background area. The concentration of copper in the soils of all studied functional zones in Novokuybyshevsk has not reached the level of approximate permissible concentration (APC), but more than the clark of the world soils and the background indicators. The downward trend in the concentration of copper in the soils of most of the studied functional zones of Novokuybyshevsk in 2018 compared with 2016 and 2017 at the relatively low level of copper content in soils of the industrial area of the city allows to exclude oil refineries from the list of its major anthropogenic sources.

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Haipeter, Thomas, and Christine Slomka. "Profit Sharing in the German Metalworking and Electrical Engineering Industries." Competition & Change 18, no. 5 (October 2014): 402–20. http://dx.doi.org/10.1179/1024529414z.00000000068.

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Profit sharing is an increasingly important component of pay in Germany and is the main reason for the intensification of wage drift that has been observed in recent years. However, little is known about how widespread it is, how it is collectively regulated, the regulatory practices that accompany it and the effects those practices have on works councils and unions. These questions are analysed with respect to the development of profit sharing in the German metalworking industry, where it is relatively widespread. Our analysis shows that profit sharing is characterized by ambiguities and contradictions. On the one hand, it is contributing to the ongoing process of wage modernization; on the other hand, however, profit sharing is fuelling trends towards the fragmentation and financialization of pay. Moreover, although driving up actual wages, profit sharing is also a manifestation of an increasing redistribution of income between capital and labour, between firms and between different categories of employee.

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18

Carlsson, Bo, David B. Audretsch, and Zoltan J. Acs. "Flexible technology and plant size U.S. manufacturing and metalworking industries." International Journal of Industrial Organization 12, no. 3 (September 1994): 359–72. http://dx.doi.org/10.1016/0167-7187(94)90038-8.

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Piacitelli, Greg M., W. Karl Sieber, Dennis M. OʼBrien, Robert T. Hughes, Robert A. Glaser, and James D. Catalano. "Metalworking Fluid Exposures in Small Machine Shops: An Overview." AIHAJ 62, no. 3 (May 2001): 356–70. http://dx.doi.org/10.1202/0002-8894(2001)062<0356:mfeism>2.0.co;2.

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20

Dinh, Hoai-Nam, Shang-Liang Cheng, and Cheng-Ru Yu. "KNOWLEDGE-BASED SYSTEM FOR MACHINE SELECTION IN METALWORKING INDUSTRY." Transactions of the Canadian Society for Mechanical Engineering 41, no. 5 (December 2017): 706–16. http://dx.doi.org/10.1139/tcsme-2017-505.

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In this research, a knowledge-based system with a function module in manufacturing processing is used to recommend machining algorithms and to provide a cost analysis for manufacturers and clients. In each manufacturing segment, metal processing plants will be able to upload an engineering drawing into a machine information database system. Machine processing capability for management work is then analyzed via Siemens PLM Software NX. The result of the analysis includes axes of movement, mass, volume, accuracy, surface roughness, geometric features and other information uploaded into the database system. Users select the recommended machine specification requirements and establish a postprocessor. This research aims to improve the customized manufacturing and manufacturing capabilities of metal processing companies in order to quickly respond to the target date and to integrate the three technical keywords “Selecting machine system”, “Cost estimation” and “Machine recommendation algorithms”.

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21

Kotlyarov, V. P., A. P. Maslakov, and A. A. Tolstoles. "Digital Modelling of Production Engineering for Metalworking Machine Shops." Proceedings of the Institute for System Programming of the RAS 31, no. 3 (2019): 85–98. http://dx.doi.org/10.15514/ispras-2019-31(3)-8.

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Piacitelli, Greg M., W. Karl Sieber, Dennis M. O'Brien, Robert T. Hughes, Robert A. Glaser, and James D. Catalano. "Metalworking Fluid Exposures in Small Machine Shops: An Overview." AIHAJ - American Industrial Hygiene Association 62, no. 3 (May 2001): 356–70. http://dx.doi.org/10.1080/15298660108984638.

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Ingemansson, Alexander R. "The Development of Informational-Executive Cyber-Physical Systems in Materials Production and Metalworking." Materials Science Forum 973 (November 2019): 200–205. http://dx.doi.org/10.4028/www.scientific.net/msf.973.200.

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It is pointed out that the increase of efficiency of machine-building industry and materials production by means of implementation of science-intensive informational-executive cyber-physical systems firstly must be realized in metalworking industry. The aspects of composition and mechanisms of function of cyber-physical systems and the directions of the increase of efficiency of production technologies in metalworking are investigated.

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24

Alderman, Neil, and Steve Davies. "Modelling Regional Patterns of Innovation Diffusion in the UK Metalworking Industries." Regional Studies 24, no. 6 (December 1990): 513–28. http://dx.doi.org/10.1080/00343409012331346184.

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25

Basso, Pietro. "Trade union responses to racism in Italy's shipbuilding and metalworking industries." Transfer: European Review of Labour and Research 13, no. 3 (August 2007): 431–46. http://dx.doi.org/10.1177/102425890701300308.

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Since 1973 Italy has become a nation of growing immigration: its economy has come to rely on immigrants as low-cost workers with extremely limited rights. The diffusion of racism, both institutional and ‘popular’, has much to do with this. Immigrant workers and populations cannot accept this situation as their destiny. They are making egalitarian, anti-racist demands through their self-organisation and increasing unionisation. The response of Italian unions has been contradictory. They have been slow in recognising the very existence of discrimination, racism and xenophobia, and are not doing everything they should and could do to defend immigrant workers and to promote their participation in trade union activities. The cases of Fincantieri, FIAT and Electrolux are emblematic.

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Esrom, K. J. "ANNUAL METALWORKING AND MANUFACTURING EXHIBITION AND CONFERENCE ... WESTEC'97." Robotica 16, no. 1 (January 1998): 117–18. http://dx.doi.org/10.1017/s0263574798220200.

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The WESTEC exhibition, held on March 24–27, 1997, at the Los Angeles Convention Center attracted 683 exhibitors and nearly 30,000 manufacturing professionals, the biggest ever event. A wide selection of manufacturing equipment and technologies was displayed in an area of over 250,000 square feet, including machine tools of every description, plastics and integrated design and manufacturing . . . . Over 1000 international equipment lines were exhibited by leading international machine tool builders, and the technology categories included machining, milling, grinding and deburring, cutting tools, drilling and tapping, CAD/CAM, EDM, machine control finishing, laser systems, etc . . . .

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27

Chudnovskaya, I. V., Z. M. Berkheeva, and N. S. Shamsutdinov. "Influence of microbial contamination of cutting fluid on the health of machine operators." Kazan medical journal 66, no. 4 (August 15, 1985): 251–54. http://dx.doi.org/10.17816/kazmj61768.

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Koval’ova, Iryna. "DEVICE FOR INCREASING THE PRODUCTIVITY OF MILLING MACHINE OPERATION WITH CNC MCV-1000." ENGINEERING, ENERGY, TRANSPORT AIC, no. 3(106) (November 27, 2019): 73–79. http://dx.doi.org/10.37128/2520-6168-2019-3-9.

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Тhe work of the milling machine with the CNC MCV-1000 is considered. A device that significantly improves the productivity of this machine when performing the operation of milling round holes along the outer surface of the pipe with a certain step is shown. The results obtained by experimental means are indicated. Analysis of current trends in the development of machine tool industry indicates the need to increase the technical level of metalworking equipment with developed complexes of technological operations. A significant role is played by the equipment of metalworking machines, namely, specialized devices for various types of processing. The goal is to increase metalworking productivity. As a result of the analysis of existing devices revealed their advantages and disadvantages. A new design of the device for the simultaneous processing of four pipes with a length of up to 1000 mm and a diameter of 32 mm on a MCV-1000 CNC milling machine is proposed. This device is designed for reliable fixation of four pipes simultaneously for the operation of milling round holes along the outer surface of the pipe with a certain step. The introduction of this device showed a double increase in productivity compared with the previous device, which was used at the enterprise.

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Muravyova, T. M., L. K. Yampolskaya, T. I. Tokareva, I. V. Pigalova, and A. A. Antonets. "On the state of health of the population of Kazan." Kazan medical journal 74, no. 6 (December 15, 1993): 403–6. http://dx.doi.org/10.17816/kazmj71415.

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The state of health is the most important indicator of the well-being of the population, especially of such a large industrial center as the capital of the Republic of Tatarstan. Enterprises of various industries are located on its territory: energy, chemistry and petrochemistry, mechanical engineering and metalworking, construction industry, light and woodworking industries; automobile transport enterprises are widely represented. All of them make a certain contribution to environmental pollution, which undoubtedly affects the health status of the villages.

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Kuznetsov, Alexander P., and Hans-Joachim Koriath. "Energy - Information Regularities of Increasing Productivity in Metalworking Machine Tools." EPJ Web of Conferences 224 (2019): 05008. http://dx.doi.org/10.1051/epjconf/201922405008.

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Increasing productivity by higher cutting speed and achieving high precision of machined products at the same time is an important trend in the development of manufacturing technologies and metalworking machine tools. If the traditional method of exchangeable components in assemblies will lead to inefficient precise processes, the product costs will increase. The proposed energy-informational model considers a procedural system establishing the ratio of the cutting speed and the speed of physical processes in the machine tools. The energetic limit for the attainability of associated processes describes the allowable speed of materials processing by the machine tools. Stiffness of machine tool structures for highest precision manufacturing becomes comparable to work piece geometrical accuracy and manufacturing process tolerances. This paper gives several examples for admissible limits of increased productivity by increased process speeds in various manufacturing technologies for both traditional cutting and innovative methods.

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Müller, Moritz. "„Job Killer“ oder „Kollege Roboter“? Soziotechnische Risiko- und Gestaltungszukünfte des Mensch-Maschinen-Verhältnisses im Industrieroboter-Diskurs der IG Metall – “Job Killer” or “Coworker Robot”? The Shaping of Sociotechnical Risk Futures About the Relationship Between Man and Machine in the Industrial Robotics Discourse by the German Industrial Metalworking Union (IG Metall)." Technikgeschichte 88, no. 1 (2021): 11–42. http://dx.doi.org/10.5771/0040-117x-2021-1-11.

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Der Aufsatz untersucht verschiedene Zukünfte von Arbeit, die im Industrieroboter-Diskurs der IG Metall (IGM) während der 1970er und 1980er Jahre entwickelt wurden. Dabei wird der Frage nachgegangen, inwiefern Roboter in der Automobilindustrie als Chance bzw. Risiko für die Beschäftigten und ihre Stellung im Arbeitsprozess wahrgenommen wurden, und auf welchen Prämissen diese Einschätzungen und Prognosen fußten. Anhand von Betriebsreportagen in gewerkschaftlichen Periodika sowie Beiträgen von Gewerkschaftsfunktionären1 zeigt der Aufsatz unter Rückgriff auf Ansätze der Historischen Technikanthropologie sowie der soziologischen und historischen Zukunftsforschung, dass zum einen soziotechnische Risikozukünfte entworfen wurden, deren Realisierung aus Sicht der IGM verhindert werden sollte. Zum anderen diente die Skizzierung „positiver“ Gestaltungszukünfte dazu, Haltelinien für gewerkschaftliche Gestaltungsversuche von Arbeit und Technik als Arbeit an der Zukunft zu entwerfen. Bei den die skizzierten soziotechnischen Zukünfte prägenden Mensch-Maschinen-Verhältnissen handelte es sich für die Gewerkschaft letztlich um ein Verhältnis zwischen zwei Interessengruppen - Arbeitenden und Unternehmern. Der Aufsatz zeigt, dass Fragen des Verhältnisses von Mensch und Maschine die Politik der IGM stärker beeinflussten, als in der Forschung bislang angenommen wurde. Die Ergebnisse der Analyse lassen den Schluss zu, dass Gewerkschaften als Interessenvertretungsorgane der abhängig Beschäftigten angesichts der Kontingenz von Automatisierungsprozessen auch im Hier und in Zukunft nicht umhinkönnen, in ihren - notwendig in die Zukunft gerichteten - Debatten Risiko- und Gestaltungszukünfte zu entwerfen.

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Semanová, Petra, and Marián Kučera. "Health Effects from Occupational Exposure to Metalworking Fluid Mist." Key Engineering Materials 581 (October 2013): 112–18. http://dx.doi.org/10.4028/www.scientific.net/kem.581.112.

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Metalworking fluids (MWFs) are an essential part of a technological process. They are used in machining operations for enhancing cutting process performance. The performance of MWFs depends on properties such as specific heat, viscosity, density and thermal conductivity. MWFs are used to cool and lubricate the cutting zone, flush away chips and inhibit corrosion during machining operations. On the other hand, MWFs are associated with formation of liquid aerosols (mists) that represents two types of occupational risk factors for machine operators - chemical and biological. Epidemiological assessments with machine operators in the metalworking industry have identified dermatologic and respiratory effects. The aim of this article is to review what is known about health effects from inhalation exposure to mist from various types of MWFs.

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Simon, Alexandre Tadeu, and Carlos Roberto Camello Lima. "Computer numeric control machine tools utilisation by metalworking companies in Brazil." International Journal of Manufacturing Research 10, no. 3 (2015): 267. http://dx.doi.org/10.1504/ijmr.2015.071625.

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Amdur, Kathryn E., and Laura Lee Downs. "Manufacturing Inequality: Gender Division in the French and British Metalworking Industries, 1914-1939." Journal of Interdisciplinary History 27, no. 3 (1997): 522. http://dx.doi.org/10.2307/205933.

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MIRER, FRANKLIN E., ROBERT M. PARK, and MICHAEL A. SILVERSTEIN. "Epidemiologic and Toxicologic Evidence of Occupational Cancer in Metalworking and Transportation Equipment Industries." Annals of the New York Academy of Sciences 572, no. 1 Occupational (December 1989): 10–16. http://dx.doi.org/10.1111/j.1749-6632.1989.tb13565.x.

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Stewart, Mary Lynn, and Laura Lee Downs. "Manufacturing Inequality: Gender Division in the French and British Metalworking Industries, 1914-1939." American Historical Review 102, no. 2 (April 1997): 446. http://dx.doi.org/10.2307/2170866.

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Cañizares, P., J. García-Gómez, F. Martínez, and MA Rodrigo. "Evaluation of a simple batch distillation process for treating wastes from metalworking industries." Journal of Chemical Technology & Biotechnology 79, no. 5 (April 7, 2004): 533–39. http://dx.doi.org/10.1002/jctb.1021.

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Fournier, Jorge L. Velez, and Jayanta K. Banerjee. "Theoretical limits on barreling of cylinders under axisymmetric compression." Journal of the Mechanical Behaviour of Materials 20, no. 4-6 (June 1, 2012): 87–88. http://dx.doi.org/10.1515/jmbm.2011.018.

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AbstractA theoretical analysis on three different geometrical limits during axial compression of a cylindrical workpiece under monotonically increasing external load is presented. Barreling is the main factor in metalworking industries, and it depends highly on several dimensional ratios such as initial aspect ratio (height/diameter), work/platen contact diameter ratios, etc. For a known material, barreling can be predicted from the mathematical formulations on the geometrical limits presented herein.

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Astebro, Thomas. "Noncapital Investment Costs and the Adoption of CAD and CNC in U.S. Metalworking Industries." RAND Journal of Economics 33, no. 4 (2002): 672. http://dx.doi.org/10.2307/3087480.

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Winch, Graham. "New Organisational Forms in Traditional Industries: The Process of Change in the Metalworking Sector." Management Research News 15, no. 5/6 (May 1992): 56–57. http://dx.doi.org/10.1108/eb028248.

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Grossi, Marco, Carola Parolin, Beatrice Vitali, and Bruno Riccò. "A portable sensor system for bacterial concentration monitoring in metalworking fluids." Journal of Sensors and Sensor Systems 7, no. 1 (May 8, 2018): 349–57. http://dx.doi.org/10.5194/jsss-7-349-2018.

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Abstract. The detection of bacterial concentrations in metalworking fluids (MWFs), oil-in-water emulsions used in the cutting industries for cooling and lubrication, is important in order to extend the product life-cycle and plan its disposal according to regulations and legislations. The standard method of measuring culturable bacterial concentration is the plate count technique (PCT) that, however, has long response times and is not suitable for automatic implementation outside a laboratory. In this paper a portable sensor system that measures the bacterial concentration in liquid and semi-liquid media exploiting impedance microbiology is presented and tested for the application of MWF microbial monitoring. A set of MWF samples, taken from metalworking plants, have been tested and good agreement has been found between the system response and that of the PCT. The proposed system allows automated bacterial concentration measurements with shorter response times than the PCT (4 to 24 h vs. 24 to 72 h) and is suitable for in-the-field MWF monitoring.

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Prasad, Aashika, Gowtham M, Mohanraman S, and Suresh M. "Automatic Sorting Machine." International Research Journal of Multidisciplinary Technovation 2, no. 1 (January 25, 2020): 7–12. http://dx.doi.org/10.34256/irjmt2102.

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Businesses around the world automate their outbound profiling and sortation process for an increased productivity. Sorting plays a key role in any industrial automation, particularly in the field of packaging industries. This paper aims at providing significant low-cost automation in packaging industries that calls for sorting and how the implication of pneumatics can yield a desirable solution. The prototype of the automatic sorting machine allows a systematic sorting of the carton boxes corresponding to their sizes using a pneumatic system, which is achieved by using pneumatic cylinders and direction control valves. The sorted carton boxes are shoved from the main line conveyor to the sub-line conveyor using the pneumatic cylinder, which is then collected and dispatched to the next division for the packaging purposes. Using this approach, the packaging industries can attain the maximum benefits thereby enabling a surge in their production.

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Hirose, Michitaka. "Media Heavy Industries." Journal of Robotics and Mechatronics 9, no. 3 (June 20, 1997): 193–96. http://dx.doi.org/10.20965/jrm.1997.p0193.

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The term multimedia is now one of the most important keywords of modern society. This is a leading-edge field for computer technology, but has drastically different characteristics from the conventional computer technology from various standpoints. At one time in the past, the computer was, literally speaking, a machine for 'computing'. If its source is traced back, it is found that there was an interest in knowing how much a machine would be able to approach man's intelligence, i.e. logical thinking. As a consequence, the computer is an artificial 'brain', and we have been thinking of the computer by using 'brain' as metaphor. However, if we try to apply this metaphor to the computer of the multimedia age, we realize that it does not work from many perspectives. This is because multimedia technology appears to be developing in a direction somewhat different from the direction for artificially creating a highly intelligent machine called the brain.

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OʼBrien, Dennis M., Greg M. Piacitelli, W. Karl Sieber, Robert T. Hughes, and James D. Catalano. "An Evaluation of Short-Term Exposures to Metalworking Fluids in Small Machine Shops." AIHAJ 62, no. 3 (May 2001): 342–48. http://dx.doi.org/10.1202/0002-8894(2001)062<0342:aeoste>2.0.co;2.

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O'Brien, Dennis M., Greg M. Piacitelli, W. Karl Sieber, Robert T. Hughes, and James D. Catalano. "An Evaluation of Short-Term Exposures to Metalworking Fluids in Small Machine Shops." AIHAJ - American Industrial Hygiene Association 62, no. 3 (May 2001): 342–48. http://dx.doi.org/10.1080/15298660108984636.

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FUJIKAWA, TAKAO. "Utilization of HIP in precision machine industries." Journal of the Japan Society for Precision Engineering 52, no. 3 (1986): 425–29. http://dx.doi.org/10.2493/jjspe.52.425.

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Dikova, Lyudmila V., and Natalya S. Samarskaya. "Experimental studies of the properties of metal dust." SAFETY OF TECHNOGENIC AND NATURAL SYSTEMS, no. 3 (September 3, 2021): 47–54. http://dx.doi.org/10.23947/2541-9129-2021-3-47-54.

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Introduction. The issues of ensuring the environmental safety of metalworking industries are still very relevant. Moreover, the primary role in these issues is played by the protection of atmospheric air from the emissions of industrial enterprises in this industry. For the successful implementation of measures aimed at ensuring the environmental safety of atmospheric air, it is important to study in detail the composition and properties of the emission components. Problem Statement. The aim of the study is to analyze the entire range of modern methods for measuring the parameters of the properties of metal dust, as the main component of emissions from metalworking industries; to select the method of experimental research; to conduct a dispersion analysis of metal dust particles. Theoretical Part. As a rule, the productivity of experimental studies of the parameters of the properties of pollutants largely depends on the methods that were used in the performance of the work. To solve these problems, the authors have analyzed modern methods for measuring the parameters of the properties of metal dust. The choice is made according to the basic principles: relativity, relevance, completeness, labor intensity. The conditions for the final results of the research, their accuracy and reliability, the conditions for the terms, resources, technical means of research used, and the positive and negative aspects of each of the methods under consideration are also taken into account. Conclusion. The article presents the result of the choice of the research method and the results of experimental studies of the properties of metal dust.

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Park, D. "A model for predicting endotoxin concentrations in metalworking fluid sumps in small machine shops." Annals of Occupational Hygiene 45, no. 7 (October 2001): 569–76. http://dx.doi.org/10.1016/s0003-4878(01)00011-4.

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Hands, David, Maura J. Sheehan, Ben Wong, and Henry B. Lick. "Comparison of Metalworking Fluid Mist Exposures from Machining with Different Levels of Machine Enclosure." American Industrial Hygiene Association Journal 57, no. 12 (December 1996): 1173–78. http://dx.doi.org/10.1080/15428119691014305.

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Chaudhari, Bhavesh. "Steel Quality Prediction using Machine Learning." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (June 20, 2021): 1535–38. http://dx.doi.org/10.22214/ijraset.2021.35407.

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These days, just like other industries mechanical industries are also shifting towards the automation by using various techniques like machine learning, nano technology, 3D printing, etc. From 19th century steel has been widely used for construction purposes especially TMT rod(thermo mechanically treated rod).In steel industries conventional methods have been widely used for predicting the quality of steel.These conventional methods are not so accurate as well as some times they are unable to identify the errors along with this they consume a large amount of time. we have proposed a machine learning technique by which microstructures of steel are compared from any dataset of images, in order to find the differences and from the obtained differences ,the component which have less amount of defects can be obtained.

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