Academic literature on the topic 'Thermal Processing of the Ball Screw'

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Journal articles on the topic "Thermal Processing of the Ball Screw"

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Yue, Hong Xin, Yan Shi, and Yan Mei Xi. "Research on Thermal Error Compensation Technique of the Screw." Advanced Materials Research 482-484 (February 2012): 309–13. http://dx.doi.org/10.4028/www.scientific.net/amr.482-484.309.

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In the system of the machine tool, the position error is directly affected by the thermal deformation of ball screw. Screw system is a complex thermal system, which is affected by the processing conditions, the processing cycle, the use of cooling fluid, and the surrounding environment. Due to non-linear and interaction of the thermal error, a RBF network thermal error model is proposed in the paper and the model is tested in XHFA2420 large machining center.
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Liu, Jialan, Chi Ma, Shilong Wang, Sibao Wang, Bo Yang, and Hu Shi. "Thermal boundary condition optimization of ball screw feed drive system based on response surface analysis." Mechanical Systems and Signal Processing 121 (April 2019): 471–95. http://dx.doi.org/10.1016/j.ymssp.2018.11.042.

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Hung, Sheng Hao, and Chin Chung Wei. "Study of Thermal Expansion of a Vertical Motion Ball-Screw System Operated at High Rotational Speed." Key Engineering Materials 642 (April 2015): 307–10. http://dx.doi.org/10.4028/www.scientific.net/kem.642.307.

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A ball-screw system is widely used in high speed transmission platforms. High transmission speed brings high frictional force, heat and thermal expansion occurring on contact areas of ball, screw and nut. Positioning error of platform is affected by the thermal expansion during linear transmission. A vertical motion of ball-screw driving system was used for high speed transmission test. Thermal expansion of screw and positioning error were measured for discussion their effects. Cyclic vertical motion during a long transmission distance, 2 km, will integrate thermal heat to ball, screw and nut, thermal expansion of screw is also occurred. From experiments, temperature rising and thermal expansion of screw and nut were recorded and calculated for estimate elongation and positioning error of a vertical motion high speed ball-screw. Positioning error is not totally respected thermal elongation effects of screw and nut owing to contact forces caused by wear and thermal expansion at contact areas comparing to the heavy axial load is relative small in a vertical motion ball-screw system. Therefore, the structure stiffness is not affected significantly by thermal effect and wear.
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Wei, Chin Chung, Jeng Haur Horng, and Jen Fin Lin. "Thermal Analysis of a Ball-Screw System." Advanced Materials Research 591-593 (November 2012): 818–26. http://dx.doi.org/10.4028/www.scientific.net/amr.591-593.818.

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High speed ball-screw system has serious friction heat to form thermal expansion to each component. An analyzing model considering with contact deformation and thermal expansion is established in realizing positioning error for a high speed ball-screw system. A finite element model of nut is also built in calculating elongation of nut. Surface strain of nut is measured by strain gages in order to confirm with data obtained from finite element model. Temperature of nut and screw were also measured by thermal couples and are used in calculation of elongation by the use of linear elongation equation. The tendency of positioning error is well estimated by the analyzing model. The model can be used in feedback positioning control factor and develop precision high speed ball-screw system.
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KODERA, Takehiko, Kazuhiro YOKOYAMA, Kazuo MIYAGUCHI, Yutaka NAGAI, Takamasa SUZUKI, Masami MASUDA, and Takanori YAZAWA. "Real-Time Estimation of Ball-Screw Thermal Elongation Based upon Temperature Distribution of Ball-Screw." JSME International Journal Series C 47, no. 4 (2004): 1175–81. http://dx.doi.org/10.1299/jsmec.47.1175.

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Li, Zi Han, Kai Guo Fan, and Jian Guo Yang. "Analysis of the Thermal Behavior of a Ball Screw Based on Simulation and Experimental Investigation." Applied Mechanics and Materials 577 (July 2014): 140–44. http://dx.doi.org/10.4028/www.scientific.net/amm.577.140.

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Thermal expansion of ball screw system affects the machining accuracy of machine tools significantly. The objective of this paper is to analyze the thermal behavior and predict the temperature variation pattern of a ball screw based on finite element analysis and experimental investigation. Wireless temperature sensors are used to monitor the temperature variation of the ball screw system under different thermal conditions during both the warm-up and cooldown phases, so as to investigate its temperature variation pattern. Then an exponential algorithm is proposed to analyze and predict the temperature variation of the ball screw based on finite element analysis, and the actual thermal boundary conditions of the ball screw system are exactly defined according to the proposed algorithm and the experimental results. Finally, it was found that the simulation based on the thermal boundary conditions identified herein could match quite well with the experimental results.
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Kodera, T., K. Yokoyama, K. Miyaguchi, Y. Nagai, T. Suzuki, M. Masuda, and T. Yazawa. "315 Real-time Estimation of Ball-screw Thermal Elongation Based upon Temperature Distribution of Ball-screw." Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21 2003 (2003): 495–500. http://dx.doi.org/10.1299/jsmelem.2003.495.

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Wei, Chin Chung, Jui Chi Wang, and Yuan Lun Huang. "Thermal Displacement Analysis and Verification for Screw in a Vertical Transmission Double Nut Ball-Screw System." Applied Mechanics and Materials 883 (July 2018): 22–29. http://dx.doi.org/10.4028/www.scientific.net/amm.883.22.

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High speed transmission table is wildly used in industry and the demand is increased recently. High speed ball-screw device is a major component in the system. High speed transmission brings high friction and causes serious thermal displacement, especially in vertical transmission situation. Because the external load is become axial load applied on nut directly. Friction and wear became heavier on contact areas between ball and raceways, preload in ball-screw will thus be decreased speedily with operating time. The decrease of preload is also affect thermal rising rate and thermal displacement.The work of this paper is to establish a thermal elastic-viscous hydrodynamic lubrication (EHL) analysing model for friction calculation. Contact and friction forces of each contact area varying with operating conditions of ball-screw can be obtained as boundary conditions of FEM model, and theoretical results were well confirmed with surface temperature and displacement of screw. The aim of the study is useful in understanding thermal effect for a preloaded double nut ball-screw in vertical transmission.
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Gao, Qin, Guo, Wang, and Zan. "Adaptive Method to Reduce Thermal Deformation of Ball Screws Based on Carbon Fiber Reinforced Plastics." Materials 12, no. 19 (September 24, 2019): 3113. http://dx.doi.org/10.3390/ma12193113.

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Abstract: In high-speed precision machining, thermal deformation caused by temperature rise affects the accuracy stability of the machine tool to a significant extent. In order to reduce the thermal deformation of ball screws and improve the accuracy, a new adaptive method based on carbon fiber reinforced plastics (CFRP) was proposed in this study and the thermal deformation of ball screws was determined. By using the sequential coupling method, the thermal–structural coupling analysis of a ball screw was conducted based on the finite element method (FEM). The analysis results were verified through a comparison with the experimental results. Based on the verification, an FE model of the improved ball screw was established to study its thermal characteristics. The key design parameters of the improved ball screw were optimized based on the Kriging model and genetic algorithm (GA). The thermal reduction effect of the improved ball screw was validated through the experimental results. The results indicate that the adaptive method proposed in this research is effective in reducing the thermal deformation of ball screws.
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Gao, Xiangsheng, Kuan Zhang, Min Wang, Tao Zan, and Jiajun Luo. "Thermally stimulated artificial muscles: Bio-inspired approach to reduce thermal deformation of ball screws based on inner-embedded CFRP." REVIEWS ON ADVANCED MATERIALS SCIENCE 60, no. 1 (January 1, 2021): 541–52. http://dx.doi.org/10.1515/rams-2021-0047.

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Abstract Ball screws are the indispensable machine tool components and, as such, influence the positional accuracy of machine tools. The accuracy stability of machine tools is affected by thermal deformation of ball screws resulting from the increase in temperature. Inspired by the distinctive artificial muscle heat behavior, a bio-inspired ball screw was proposed. The proposed ball screw was based on the inner-embedded carbon fiber-reinforced plastic (CFRP), which restrains the axial expansion through the thermal contraction of CFRP. Additionally, a thermal conductor was mounted between the screw shaft and CFRP to improve the thermal conduction condition. Furthermore, both the simulation analysis and comparative experiments were carried out to compare the bio-inspired ball screw with the standard one. Two working conditions were considered to evaluate the effectiveness of the novel design, primarily in terms of reducing thermal deformation. Both results show that the proposed approach is effective and can be applied to reduce the thermal deformation of ball screws.
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Dissertations / Theses on the topic "Thermal Processing of the Ball Screw"

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Drábek, Michal. "Životnost kuličkových šroubů při různém způsobu výroby a tepelného zpracování profilů valivých drah." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231510.

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The aim of this thesis is ball screw service life measurement. Text is divided on two major parts, theoretical one and practical one. Theoretical part describes three basic methods of ball screws manufacturing – rolling, whirling and grinding. Subsequently, methods of heat treatment (inductive and laser hardening) are mentioned. Practical part is devoted to ball screw service life testing and evaluation of results. Tests were carried out on two sets of two ball screws. First set was manufactured by whirling and grinding followed by inductive hardening. Second set was manufactured by grinding followed by inductive hardening in one case and laser hardening in the second one. Test results were evaluated according to international standards.
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Holroyd, Geoffrey. "The modelling and correction of ball-screw geometric, thermal and load errors on CNC machine tools." Thesis, University of Huddersfield, 2007. http://eprints.hud.ac.uk/id/eprint/2627/.

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In the modern global economy, there is a demand for high precision in manufacture as competitive pressures drive businesses to seek greater productivity. This results in a demand for a reduction in the errors associated with CNC machine tools. To this end, it is useful to develop a greater understanding of the mechanisms which give rise to errors in machine tool drives. This programme of research covers the geometric, thermal and load errors commonly encountered on CNC machine tools. Several mathematical models have been developed or extended which enable a deeper understanding of the interaction between these errors, various details of ballscrew design and the dynamic behaviour of ballscrew driven systems. Some useful models based on the discrete matter or “lumped mass” approach have been devised. One extends the classical eigenvalue method for finding the natural frequencies and other dynamic characteristics of ballscrew systems to include viscous damping effects using a generalised eigenvalue approach. This gives the damping coefficient of each predicted vibration mode along with the estimates of the natural frequencies, enabling many of the natural frequencies predicted by standard undamped natural frequency analyses to be dismissed as being of little consequence to the vibratory behaviour of the system. A development of this modelling method gives the sensitivity of the system to changes in stiffness and damping characteristics, which is helpful at the preliminary design stage of a ballscrew system, and is an aid in deciding the most convenient remedy to vibration problems which may occur in service. The second set of lumped-mass models is specially developed to take account of the changes in the configuration of the system with time as the nut moves along the screw while taking into account the non-linear phenomena of backlash and Coulomb friction. These can deal with the axial, torsional and transverse degrees of freedom of the system and predict many aspects of the dynamic behaviour of a ballscrew system which have an effect on the errors arising from such systems. They also include features which calculate the energy converted to heat by all the energy dissipative mechanisms in the model which can be used in conjunction with models already developed at the University of Huddersfield to predict thermal errors. Further, a strategy for compensation of some of these errors has been devised
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Chao, Yen-Jui, and 趙沿瑞. "The compensation analysis of thermal displacement in the ball screw for high speed processing." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/04932369880748742434.

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碩士
國立雲林科技大學
機械工程系碩士班
99
The important factors of feed system determine the axial positioning accuracy in machine tools, if considers to the cost, travel, rigidity, and loading, the ball screw that have diverse characteristic simultaneously, and often be used in one kind of drive element. In recent years, in order to promote the working efficiency of machine tool, feed system has gradual high speed''s turning, immediately raise to the request of accuracy. However, when screw in high speed to feed, screw with roll ball rubbing cause screw to inflate and elongation because of thermal, this expansion quantity will have the error to location when the machine to move. To improve what temperature rise causes thermal displacement, usually adopt thermal displacement compensation technology have more economic efficiency. This thesis primarily focus on developing a set of immediately thermal displacement compensation system, reduces the influence of ball screw temperature rise influence of the machine displacement. To establish immediately thermal displacement compensation system, needs the complete thermal displacement and the temperature experiment datum. In order to give dual attention to screw dynamic of multi-spots measurement, the consideration of sub-micron class resolution and the non-contact measurement method, This article takes the thermal displacement measuring instrument by the laser interferometer, and imbed the temperature sensor into the screw nut to measure the screw temperature rise. Finally uses Ivakhnenko’s propose that Abductive nerves network mode constructs between the temperature and the thermal displacement relationship, and establishes a set of complete thermal displacement compensation program to link to the value controller. To achieve the real-time compensation of temperature rise influence of the machine displacement.
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陳薏淇. "Study of Ball-Screw Thermal Growth Compensation." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/81188198407727893122.

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碩士
國立彰化師範大學
電機工程學系
99
Abstract Most of metal processing industries in developing countries or in developed countries are facing the situation of being not able to compete with those in the underdeveloped countries such as China, India, etc., who have cheap labor cost. During past five to ten years, those metal processing industries were a huge loss of orders, as well as their jobs. To survive in their countries, their only solution is to shorten processing hours, increase efficiency and accuracy of the products. To achieve this goal, there has been a lot of high-speed machining technology introduced. In the meantime, high-speed machining technology becomes more and more important for machine tool manufacturing industry, particularly in the high-speed machining centers. To meet the demand for high-speed machining technology, the axes are designed to achieve fast feed. However, ball-screws generate thermal expansion due to high speed movement, thus decrease axis positioning accuracy and increase tolerance. To reduce the tolerance, nowadays there are three solutions. Firstly, the ball-screw is pre-tensioned to compensate the error. However, this solution has limited effect. Second, an improved hollow-shaft ball-screw cooled with chiller is used to keep ball-screw temperature low enough to prevent its thermal expansion. However, such design costs a lot and makes the manufacturing procedure complicated. Third, a closed loop position feedback device is used to read the position on optical scale and feedback value to the CNC controller. Position is no more fed back from axis servo motor encoder, in other words, ball-screw expansion will not affect the precision. However, the system generated high increase in the cost of the machine; thus losing competitiveness. This study proposes an eddy current displacement sensor for the detection unit to measure the displacement of a ball-screw directly. The measured signal is transferred to analog voltage by a transducer and it is sent to the computer numerical control. Then, through programmable logic control program, it is converted to the expanse distance. Next, an opposite direction axis movement is calculated by the computer numerical control for the compensating axial displacement. The experiments are to follow the circular test apparatus and laser interferometer to the axial feeding circularity and positioning accuracy. The measurement results show that roundness progresses by the 8.2μm to 5.2μm, and positioning accuracy improves from the 3.106μm to 2.168μm. Moreover, material and assembly cost of this study is around NT$10,000.00. To compare to the hollow ball-screw cooling system or close loop position feedback system, machine tool manufacturers can save the entire machine cost around 4% to 15%, depend on machine sizes. This study provides effective and competitive way to improve the quality for high-speed and high-precision machine and offer added-value on machine tools. It hopes to enter high value machine tools market level as Japanese, German and other European countries’ products; it gets further away from those products of mainland China, India, etc., which compete strongly with low price. It helps machine tool manufacturer to find a sustainable way.
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Liao, Rock, and 廖子恩. "The measuring of ball screw thermal expansion." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/21562364578585267234.

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碩士
國立中正大學
機械系
88
An Abstract The high-speed cutting is most important topic in machine tool industrial in pass few years, by new tooling technology, the cutter surface speed are 5~8 time increasing than before。 To match the new tooling technology, most of machine tool manufactures are research in high speed spindle、transmission system、CNC controller and servo system。 To increase Rapid feed and cutting feed, the Linear motor are used to replace rotary motor & ball screw system for high end machines in few manufactures, but middle and low end machines still stay with ball screw system, because cost concern。 Ball screw nut pre-load can reduce back-lash and increase rigidity in ball screw system, but higher pre-load or higher screw rotation speed or higher loading both will generated more heat between screw、ball、nut by friction。 The position accuracy and repeatability are fair when heat generate in ball screw and causing thermal expansion。 Measuring the temperature change in screw & nut surface and screw expansion rate in different moving speed (2500, 5000, 7500, 10000 mm/min.), Used inverse method to build up system warm up model & equations。 Based on the model and equations to evaluated ball screw expansion rate, and comparison with reading to modify parameters to get better result。 The results are showing linear relation between expansion rate and temperature raise both in screw and nut, based on the temperature feed back from screw nut, to forecast ball screw average temperature and thermal expansion rate to compensate the error of positioning。 The positioning and repeatability accuracy are up grade in limit cost increasing 。
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Lin, Chien-Yu, and 林謙育. "Thermal Analysis and Verification for Double-Nut Ball Screw." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/6j4p53.

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碩士
國立虎尾科技大學
機械與機電工程研究所
102
The ball screw is a precision mechanical transmission component, because the ball in the track motion is not only pure rolling, but also rolling and sliding at the same time. When sliding occurs, the ball contact with the track surface will generate friction heat, especially at high transmission conditions, so that the nut and the screw temperature increased significantly, the main reason for affecting on thermal deformation, led to a significant decline in positioning accuracy. Therefore, this paper used the finite element analysis software (Ansys Workbench) to establish nut thermal analysis model. At first ,the boundary condition takes kinematics theory of ball screw into consideration, and therefore we’d be able to calculate all sorts of parameter such as contact angle, normal force, friction coefficient and sliding speed between the ball and screw, and we also take considered on transmission acceleration, constant and deceleration of the ball screw into consideration, then we can calculate the average heat flux on contact surface of the ball on the track, Secondly, consider setting the nut affected by forced air cooling convection in reciprocation. The nut thermal analysis model can predict the nut''s temperature variation after temperature raised, and explore strain of the nut surface with thermal effect generated nut deformation on different temperature raised. In the experiments, a vertical motion of the single axial screw testing machine to run tests on ball screw, and an additional thermocouple and strain gage is placed on surface of nut, which allows us to gain instant information of the temperature and strain variation of the nut. The results of our experiment are than being compared with the simulated results to increase the reliability of this paper''s construct. Heat transfer conditions at contact surfaces of nut and air, and the other fixed component are also set as boundary conditions. Thermal analysis model can be used in the basis of the ball screw''s nut temperature control design and thermal displacement compensation mechanism.
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Yu, Suz-wei, and 余思緯. "The Thermal Analysis of Nuts in Ball Screw Systems." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/38972138799479604442.

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碩士
國立成功大學
奈米科技暨微系統工程研究所
97
Most of the positioning errors of ball screws come from thermal deformation. The working temperature of the lubricant renders the lubricant film ineffective, and the temperature would continue to rise. This master thesis (1st part) focuses on lubricating ball screws to study the thermal distribution of nuts through an appropriate heat analyzing model. The heat source model derived from sliding and rolling velocities of a ball’s motion would be the first time such a heat source generated from friction is modeled under lubricating conditions of kinematics. Specifically, we consider the relationship between the temperature and viscosity of lubricant, and include it in our simulated flow chart so as to construct a complete thermal analytic model of nuts. In the second part, we measure the temperature from only three operating conditions and take the root mean square error method with the experimental results and the thermal analyzing model from the first part. According to procedure, we can find the predicting curve of the convection coefficient on the groove, and use it in conjunction with the thermal analyzing model to forecast the temperature distribution of nuts at other revolution speeds. 【1st Part】 A preload was added to improve the rigidity and position accuracy of the ball screws. However, more preload will induce increased friction between moving and stationary elements as well as drastic temperature rise. This results in thermal deformation, one of the major accuracy errors of ball screws. In this thesis, we used FEM to construct a thermal analyzing model of nuts under lubricating conditions. The distinguishing point of this thesis is modeling the heat source using kinematic theory, such as average heat flux, average contact band, etc. The appropriate heat source boundary conditions for constructing a heat source model were derived from sliding and rolling velocities of moving balls. The thermal distribution of the nuts would be obtained from the FEM analysis with appropriate boundary conditions. We then considered the relation between the lubricant’s temperature and viscosity, and included it in our simulated flow chart to build a complete thermal analytic model of nuts. 【2nd Part】The lubricant, especially it viscosity, is very sensitive to the ball screws’ working temperature. The operating and lubricating conditions affect the working temperature rise as well. Therefore, we measured the temperature inside the nuts by embedding six thermocouples in drilled holes filled with silver powder. Using the root mean square error method along with the heat analyzing model and experimental results, we can identify the predicting curve of the convection coefficient on the groove with varying revolution speeds. We can thus forecast the temperature of nuts under other speeds after only measuring three operating temperatures.
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Tseng, Hsueh-Cheng, and 曾學承. "The Study of Ball Screw Compensation System for Thermal Expansion." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/28030401867943930131.

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碩士
國立勤益科技大學
電子工程系
99
Abstract The development of machine centers has a long history. The demand for machine tools with high speed and high precision is the international trend and the users of machine centers also claim higher precision and reliability. During high-speed processing, the axial displacement will produce rapid changes in temperature, and temperature changes will cause thermal elongation on ball screws. There are currently ways either to use hollow screws with cooling systems which can control temperature changes or to install a linear scale for correcting the elongation of the ball screw caused by heat. However, these two designs cost more. Although the temperature compensation technology has caught much attention in recent years, the effect is far from perfect, and the cost is still high. In the future, as higher-speed machine centers are running, thermal elongation of the ball screw will be more and more serious. To ensure that we have high-speed machine tools with higher precision and reliability, we need a brand new compensation system to offset thermal elongation. This paper first researches different temperature compensation systems of current machine tools, both passive and active, then compares the advantages and disadvantages of each system, and illustrates more economic, practical and competitive methods using the OMP-60 workpiece measurement system, which has been widely used in the field. With its high-precision sensors and instant on-line measurements, we can control the changes in temperature of the ball screws as well as enhance the machine's precision. Our main purpose is to help high-speed machine tool makers develop highly-precise products and create higher value added. Keywords: Hollow screw, Temperature compensation, Thermal elongation of the ball screw, OMP-60.
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Tsai, Sheng-Chih, and 蔡勝植. "Thermal Deformation Estimation for a Ball Screw Feed Drive System." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/42s8cb.

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碩士
國立臺北科技大學
冷凍空調工程系所
102
The position error of a feed drive system was primarily caused by thermal deformation of a ball screw shaft. A high-speed ball screw system can generate massive heat after long-term operations with greater thermal expansion produced, and thereby unfavorably impact the positioning accuracy of the feed drive mechanism. In this study, we applied the computational approach using the finite element method (FEM) to simulate the thermal expansion process for estimating the deformation of the ball screw system. In the model, the deformation of the ball screw shaft was modeled by a linear elasticity manner given the assumption that the material was elastic, homogeneous, and isotropic. To emulate the reciprocating movements of the nut at the speeds of 20, 40 and 60 m/min corresponding to the screw shaft, we also utilized a three-dimensional unsteady heat conduction equation to determine the steady-state and transient temperature distributions, as well as temperature rises for calculating the thermal deformations of ball screws under operating situations. The analysis adopted the multi-zone heat loads to treat the heat generation sources from the frictions between the nut, bearings and the ball screw shaft. The predictions were compared with the experimental measurement for code validation. The simulated results showed that the countermeasures must be taken to thermally compensate great deterioration of the positioning accuracy due to vast heat production at high rotating speeds of shaft for a ball screw system.
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Ye, Yu-Zong, and 葉育宗. "The Thermal Effects Analysis and Experimental Verification for Ball Screw." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/tztfe6.

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碩士
國立虎尾科技大學
機械與機電工程研究所
100
Ball screw is a kind of accuracy linear transmission component. But with high rotational speed will cause more thermal displacement effects than low rotational speed. It produces different degrees of thermal expansion and a principal affecting reason of the positioning errors. A Finite element method (FEM) is used to construct a thermal analyzing model of nuts under frictional heating effects. The heat source model used ball screw kinematics to calculate a range of contact angle and average heat flux, the ball contact angle is considered as a normal distribution conditions. Boundary conditions of the analysis model have considered reciprocation by air convection effect. Thermal deformation analysis of the screw and nut were considered with internal contact geometry and temperature rise thermal effects, respectively. In the experiments, In-situ testing is held in hatchback machine of a ball screw system. This work puts the thermal couples inside the nut in order to instantaneously measure the variation of temperature, then it is can be used in the comparing with the simulation and experiment. Finally, results from experiment and simulation were confirmed for verification. Using the proposed model incorporating thermal is placement is easy applied in analysis of temperature rise control system.
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Book chapters on the topic "Thermal Processing of the Ball Screw"

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Yang, A. S., S. Z. Chai, H. H. Hsu, T. C. Kuo, W. T. Wu, W. H. Hsieh, and Y. C. Hwang. "Prediction of Thermal Deformation for a Ball Screw System Under Composite Operating Conditions." In Transactions on Engineering Technologies, 17–30. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-017-8832-8_2.

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Miranda Zamora, William Rolando, Manuel Jesus Sanchez Chero, and Jose Antonio Sanchez Chero. "Software for the Determination of the Time and the F Value in the Thermal Processing of Packaged Foods Using the Modified Ball Method." In Advances in Intelligent Systems and Computing, 498–502. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-39512-4_78.

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Han, Chang Dae. "Plasticating Single-Screw Extrusion." In Rheology and Processing of Polymeric Materials: Volume 2: Polymer Processing. Oxford University Press, 2006. http://dx.doi.org/10.1093/oso/9780195187830.003.0007.

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There are two types of extruder: (1) single-screw extruders and (2) twin-screw extruders. The single-screw extruder is one of the most important pieces of equipment in the processing of thermoplastic polymers. Accordingly, during the past three decades, many attempts have been made to analyze the performance of single-screw extruders using different degrees of mathematical sophistication (Cox and Fenner 1980; Donovan 1971; Edmondson and Fenner 1975; Elbirli et al. 1983, 1984; Halmos et al. 1978; Han et al. 1991a, 1991b, 1996; Lee and Han 1990; Lindt 1976; Lindt and Elbirli 1985; Shapiro et al. 1976; Tadmor 1966; Tadmor and Klein 1970; Tadmor et al. 1967). There are two types of single-screw extruders: (a) plasticating and (b) melt-conveying. The plasticating single-screw extruder conveys a solid polymer from the feed section to the melting section, where most of the melting (or softening) occurs, and then transports the melted or softened polymer to a shaping device (e.g., dies and molds). The meltconveying extruder does not include a melting section; it simply transports an already softened polymer to a shaping device (e.g., rubber extruder). Single-screw extruders are used for various purposes, such as melting and pumping, compounding with an additive(s) or filler, cooling and mixing, removing residual monomers or solvents in polymer (i.e., polymer devolatilization), and cross-linking reactions. Single-screw extruders are simple to operate and relatively inexpensive as compared with twin-screw extruders. However, there are situations where a single-screw extruder cannot function as effectively as a twin-screw extruder. In the design of plasticating single-screw extruders, one needs information on (1) the physical and thermal properties of polymers (e.g., friction coefficient between the solid polymer and barrel wall, thermal conductivity of polymer, specific heat as a function of temperature, melting point of polymer, and heat of fusion of polymer) and (2) rheological properties of polymers as functions of shear rate and temperature. Due to the complexity involved in the design of extruders, it is highly desirable for one to establish relationships between material variables and processing variables.
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Oane, Mihai, Ion N. Mihăilescu, and Carmen-Georgeta Ristoscu. "Thermal Fields in Laser Cladding Processing: A “Fire Ball” Model. A Theoretical Computational Comparison, Laser Cladding Versus Electron Beam Cladding." In Nonlinear Optics - From Solitons to Similaritons [Working Title]. IntechOpen, 2019. http://dx.doi.org/10.5772/intechopen.88710.

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Conference papers on the topic "Thermal Processing of the Ball Screw"

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Yoshioka, Hayato, Shunya Saito, Jun Kato, Hidenori Shinno, Shunsuke Goto, and Nobumitsu Hori. "Improvement of Thermal Deformation in a Newly Developed Steel CFRP Composite Ball Screw." In JSME 2020 Conference on Leading Edge Manufacturing/Materials and Processing. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/lemp2020-8587.

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Abstract Machine tools are required to realize high precision and high efficiency machining by various industry sectors. A machine tool has some driving systems to position cutting tools and workpieces, and hence driving units are required high speed and precision positioning. However, high speed feed motion causes thermal deformation due to generated heat at friction surfaces such as guideway, feed screw, and bearings, it deteriorates positioning accuracy of driving units. Thermal deformation of a ball screw is one of large error factors of lower positioning accuracy, and a cooling system for reducing thermal deformation is installed into machine tools. Since the cooling system needs additional cost and space in machining systems, a new method for minimizing thermal deformation is required. In this study, a new structure of ball screw is proposed in order to meet these requirements. A new ball screw which has a core pipe made of CFRP was developed. CFRP is one of composite materials which have light weight and low thermal expansion. This paper presents analysis results of a simplified FEM model of the ball screw and the basic experimental results of the developed ball screw. These results confirmed that the proposed ball screw was applied to high performance positioning system in machine tools.
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Wang, Pin, Zeng-feng Jin, and Yi-lin Zheng. "Artificial neural network-based thermal error modelling in ball screw." In 2012 IEEE Symposium on Electrical & Electronics Engineering (EEESYM). IEEE, 2012. http://dx.doi.org/10.1109/eeesym.2012.6258589.

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PIL, SANG, SEUNG YOON, SUNG KI, and ZHE ZHU. "Study on Thermal Error Elimination for a Ball Screw Feed Drive." In Third International Conference on Advances in Civil, Structural and Mechanical Engineering - ACSM 2015. Institute of Research Engineers and Doctors, 2015. http://dx.doi.org/10.15224/978-1-63248-083-5-66.

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Horejs, Otakar. "Thermo-Mechanical Model of Ball Screw With Non-Steady Heat Sources." In 2007 International Conference on Thermal Issues in Emerging Technologies: Theory and Application. IEEE, 2007. http://dx.doi.org/10.1109/theta.2007.363424.

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Navarro y de Sosa, I., A. Bucht, T. Junker, K. Pagel, and W. G. Drossel. "Thermo-mechanical self-adaptive ball screw drive using thermal shape memory effect." In SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, edited by Nakhiah C. Goulbourne and Hani E. Naguib. SPIE, 2013. http://dx.doi.org/10.1117/12.2009599.

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Wei, C. C., J. H. Horng, L. C. Hsieh, X. H. Hsu, and C. Y. Lin. "Thermal expansion analysis of and experiment on a high speed vertical motion ball-screw." In CONTACT AND SURFACE 2015. Southampton, UK: WIT Press, 2015. http://dx.doi.org/10.2495/secm150211.

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Rigacci, Massimiliano, Ryuta Sato, and Keiichi Shirase. "Experimental Analysis of the Power Consumption of Feed Drive Systems Driven by Ball-Screw." In JSME 2020 Conference on Leading Edge Manufacturing/Materials and Processing. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/lemp2020-8523.

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Abstract This study presents an experimental analysis of the power consumption of feed drive systems. The relevant system components from the power consumption point of view are the motor, bearings, ball-screw and linear guides. The electric power consumption of the motor is investigated experimentally acquiring the inputted voltage and the current; then, through the study of its efficiency, it is shown that the electric efficiency of the motor heavily depends on the angular velocity and the supplied torque. The mechanical power consumption of each component of the feed drive is investigated showing that the component that affects the most the consumption is the ball-screw. Thus, four kind of ball-screws differing for the lead of the screw and the preload of screw-nut are investigated; it is clarified the relation between the mechanical power consumption and several system characteristics such as the lead of the screw, the preload condition, and the table working velocity. Finally, the advantages and disadvantages of each mechanical configuration of the feed drive are discussed, emphasizing that the most important driven factor of the power consumption is the angular velocity due to the trade-off between the motor efficiency and the mechanical power loss of the system components cause friction.
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Okwudire, Chinedum E., and Peng Zhao. "Reduction of Vibrations in Ball Screw Driven Machine Tools by the Optimal Selection of Nut Parameters." In ASME 2012 International Manufacturing Science and Engineering Conference collocated with the 40th North American Manufacturing Research Conference and in participation with the International Conference on Tribology Materials and Processing. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/msec2012-7283.

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Due to the growing need for sustainable manufacturing processes, machine tool designers are constantly looking for ways to reduce unwanted structural vibrations without having to increase the mass/inertia of moving components, which in turn increases the energy consumption and cost of the machines. Recent research has shown that, due to the coupling introduced by the nut, the torque applied to ball screw drives by the motor causes undesirable lateral (bending) vibrations of the screw, which adversely affects the fatigue life and positioning accuracy of ball screw drives. By analyzing the stiffness matrix connecting the screw to the nut, this paper shows that the helix angle of the screw and the entry/exit angles of the balls have the most influence on the degree of coupling between motor torque and lateral vibrations of the screw. Consequently, by carefully selecting the helix angle of the screw together with the entry/exit angles of the balls, the undesirable lateral vibrations of the screw can be minimized, without having to increase the diameter (i.e. stiffness/inertia) of the ball screw. The merits and limitations of the proposed method are demonstrated using simulations on a single-axis ball screw driven machine.
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Nasri, A., L. Sayari, M. Ben Said, W. Bouzid, and O. Tsoumarev. "FE Thermal Modelling Of Machining With Ball End Milling." In MATERIALS PROCESSING AND DESIGN; Modeling, Simulation and Applications; NUMIFORM '07; Proceedings of the 9th International Conference on Numerical Methods in Industrial Forming Processes. AIP, 2007. http://dx.doi.org/10.1063/1.2740965.

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Hirasawa, Shigeki, and Tsuyoshi Kawanami. "Precise Control Method of Temperature Rising Speed of Wafer During Rapid Thermal Processing With Lamp Heaters." In ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajtec2011-44017.

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In rapid thermal processing of a semiconductor wafer, temperature-rising-time is the same order of heating-time, and so keeping a given temperature-rising-speed of the wafer during the temperature-rising process is important. We made an experimental apparatus to measure the temperature-rising-speed of a ceramic ball of 2 mm in diameter heated with four halogen lamp heaters. The temperature change of the ceramic ball was measured and the heating rate of the halogen lamp heaters was controlled by a personal computer to keep a given temperature-rising-speed 50°C/s with controlling-time-interval 0.1 s. We examined the effect of various heating control methods on the error of the temperature-rising-speed of the ceramic ball. We tested the PID-control, the control with a prepared correlation, and the combined method of control with prepared correlation and PID-control. We found that the combined method is a good method to decease the error of the temperature-rising-speed. The average error of the temperature-rising-speed is 0.5°C/s and the repetition error is almost zero for the temperature-rising-speed 50°C/s during 330°C to 370°C. We also measured the effects of artificial control-delay-time and measuring-error of the monitor temperature on the error of the temperature-rising-speed.
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