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Journal articles on the topic 'Blank thickness'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Han, Sang Wook, Hee Seok Jung, Young Yun Woo, and Young Hoon Moon. "Dimensional Characteristics of Tailor Rolled Blanks Having Thickness Variations both in Longitudinal and Width Directions." Materials Science Forum 920 (April 2018): 52–57. http://dx.doi.org/10.4028/www.scientific.net/msf.920.52.

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Tailored blanks with different blank thicknesses are semi-finished parts that can be used to produce stamping parts having a real tailor-made solution. This study investigates a manufacturing process that can produce a tailored rolled blanks(TRB) having variable thickness variations both in longitudinal and width directions. The process was experimentally and numerically investigated using three types of the conventional blank and blanks having circular and square holes. To characterize the process, the deformation behaviors of blanks were intensively analyzed. In order to understand the effec

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2

Giuliano, Gillo, and Wilma Polini. "Influence of the Initial Blank Geometry on the Final Thickness Distribution of the Hemispheres in Superplastic AZ31 Alloy." Applied Sciences 12, no. 4 (2022): 1912. http://dx.doi.org/10.3390/app12041912.

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This work deals with the design of the thickness of an AZ31 alloy blank, which is a superplastic magnesium material, to manufacture a hemisphere with a uniform final thickness. The finite element technique was used for the design process. The superplastic free-forming manufacturing was simulated for a part whose initial thicknesses were made to vary through two independent design parameters to obtain a linear thickness decrease from the pole to the end of the blank to form. This is because a linear thickness decrease is easily obtained through a machining process. The optimized blank, that is,

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3

Jiang, Yin Fang, Zhi Fei Li, Zhen Zhou Tang, and Lei Fang. "Study on the Drawing and Trimming Springback Characteristics of Cylinder Shallow Shell of Tailor Welded Blanks." Applied Mechanics and Materials 44-47 (December 2010): 143–47. http://dx.doi.org/10.4028/www.scientific.net/amm.44-47.143.

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In this study, the springback law of generatrix direction, circumferential direction of tailor welded blanks (TWBs) cylinder shallow shell impact from blank holder force, punch profile radius and sheet thickness was researched by finite element analysis, which was compared with non-welded blanks. The results show that: in the circumferential direction, with the increase of blank holder force, the trimming springback of the tailor welded blank of the thickness combination of 1.2mm and 0.8mm (TWB1208) is decreased firstly and then increased, which is larger than that of the non-welded blanks of

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4

Wang, Zhong Tang, Guang Xia Qi, and Shi Hong Zhang. "Study on Weld Seam Control and Thickness Distributing of Tailor-Welded Blanks Drawing." Applied Mechanics and Materials 80-81 (July 2011): 1035–38. http://dx.doi.org/10.4028/www.scientific.net/amm.80-81.1035.

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Deep drawing of square boxes of tailor-welded blanks (TWBs) was studied by experiment and simulation in this paper. When the tailor-welded square boxes with different thickness was drawn to square boxes, the weld seam moved towards the thick part on the bottom and towards the thin part on the wall of square boxes. If the blank-holder force was very small, the wrinkling will happen on the thin part. If the blank-holder was very large, fracture will occur on thin part. Draw beads and non-uniform blank-holder force were investigated to control the deformation of the TWBs workpieces in this paper.

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5

Demyanenko, E. G., and I. P. Popov. "Directional Thickness Alteration of a Thin-Walled Ring Blank Using Flanging and Forming for the Purpose of Receiving Conical Part." Key Engineering Materials 684 (February 2016): 253–62. http://dx.doi.org/10.4028/www.scientific.net/kem.684.253.

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In this article the flanging method of thin-walled ring blanks using the elastic punch and rigid die scheme is investigated. Presence of a cylindrical portion near the larger edge and a flat area at the side of the blank hole is mandatory. Such conditions allow producing conical parts with minimal thickness variation by altering height of the cylindrical portion. Conducted experimental studies showed that the minimal thickness variation values are not exceeding 16% for different materials and relative thicknesses less than 0,01.

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6

Costache, Elena, Gheorghe Brabie, and Augustin Jitaru. "Influence of the Blank Initial State on the Quality of the Small Drawn Parts." Applied Mechanics and Materials 371 (August 2013): 710–14. http://dx.doi.org/10.4028/www.scientific.net/amm.371.710.

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An optimum blank quality presents the following several benefits on the drawn part quality: it leads to an improved quality of the parts; it prevents some negative phenomena (like: fracture, a uniform distribution of material thickness in the drawn part and reduction of the blank holder force required during the drawing process). In the present work, an analysis was performed concerning the influence of the initial state of blank (microhardness, thickness, surface roughness and topography) on the quality of micro/milli cylindrical drawn parts made from aluminium alloy sheets having the followi

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7

Guo, Yu Qin, Xin Yang, Juan Juan Han, and Wei Chen. "Blow Molding Process Optimization of Amorphous Alloy Tube Blank Based on DEFORM Software." Advanced Materials Research 487 (March 2012): 525–29. http://dx.doi.org/10.4028/www.scientific.net/amr.487.525.

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In recent years, with the increase of the research about forming technology of amorphous alloys, blow molding is explored to process the amorphous shell parts and containers both at home and abroad. Jan Schroers of Yale University found that it can improve the formability of amorphous alloys greatly by adjusting the thickness of plate blank and prefabricating parison. In this article, choosing Zr44Ti11Cu10Ni10Be25 as the study object, plate blanks with variable thickness are prefabricated to optimize the uniformity of the wall thickness of tube blank molded and studies the effects of blowing p

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8

Kaliuzhnyi, Oleksandr, Volodymyr Kaliuzhnyi, Oleh Chuchin, Andrii Titarenko, and Vitaliy Lipodat. "Profiled Sheet Metal Blank for Flanging Flanges with Constant Wall Thickness." Journal of Engineering Sciences 12, no. 1 (2025): D9—D23. https://doi.org/10.21272/jes.2025.12(1).d2.

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This article applies the finite element method and the DEFORM software to study the influence of the die rounding radius on the axisymmetric flanging of a profiled sheet blank made of aluminum AL-1100 COLD. A profiled blank with a part with an increased thickness to be flanged is obtained by forming a hole by extrusion by punching a bridge. It has the most significant thickness near the hole, with a subsequent linear decrease to the original thickness. The elastic-plastic model of metal was used for modeling. To compare the results, we calculated the flanging of a traditional blank. The depend

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9

Jiang, Yin Fang, Lei Fang, Zhi Fei Li, and Zhen Zhou Tang. "Study on the Formability of Square Box Deep Drawing of Tailor Rolling Blanks." Key Engineering Materials 464 (January 2011): 469–73. http://dx.doi.org/10.4028/www.scientific.net/kem.464.469.

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As a new lightweight structural sheet metal, tailor rolled blanks has a good prospect in the future development of the automobile industry, and its formability is the current research focus. We use ABAQUS software to analyze the impacts of blank holder force, thickness ratio, die radius, shape and size of sheet metal on the movement of the transition zone and thickness direction strain on the formability of square box of tailor rolled blanks in deep drawing. The results show that, generally, in the punch and side wall corner, where thinning is more serious is a dangerous rupture area, while th

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10

Minh, Nguyen Quang. "Effect of Forming Parameters on Springback of Advanced High Strength Steel DP800." Applied Mechanics and Materials 703 (December 2014): 182–86. http://dx.doi.org/10.4028/www.scientific.net/amm.703.182.

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Springback is one of the main quality defects in the sheet forming. In this paper, numerical simulation is used to analyze the effects of blank holder force, friction coefficient, blank thickness, die corner radius and stroke on springback. The effect of blank holder force and blank thickness on springback is obvious. Springback decreases as the BHF and blank thickness increase. Increasing friction coefficient between tools and blank shows a good suppression effect on springback. Larger die corners increase the curvature of side wall and worsen the springback, but the springback of flange is r

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11

Zhu, Chengcheng, Fan Li, Yuanzhe Dong, Shengdun Zhao, Jingxiang Lv, and Dean Meng. "The Rollers’ Offset Position Influence on the Counter-Roller Flow-Forming Process." Metals 12, no. 9 (2022): 1471. http://dx.doi.org/10.3390/met12091471.

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Background: The general counter-roller flow-forming (CRFF) process rarely considers the roller’s offset position for the symmetric rollers. However, the rollers’ offset position can regulate the tube shape, force, and other features. Studying the novel asymmetric CRFF process, which is the CRFF process with the rollers’ offset position, is essential. Methods: The influence of the rollers’ offset position, the tube blank thickness, thickness reduction on the material deformation, flow-forming force, final tube middle radius, and thickness in the CRFF process are studied using AA5052 aluminum tu

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12

Menezes, Luís, Marta Oliveira, Diogo Neto, Carlos Monteiro, and André Pereira. "Influence of thickness variability on the deep drawing of a cylindrical cup." MATEC Web of Conferences 408 (2025): 01019. https://doi.org/10.1051/matecconf/202540801019.

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The aim of this study was to analyze the influence of the blank thickness variability on the forming of a cylindrical cup, using the Finite Element Method. To quantify this influence, different thickness distributions were numerically generated and analyzed, considering different levels of smoothness in the thickness distribution, but the same average and variance. For each case study, the evolution of the punch force, equivalent plastic strain, cup thickness distribution for different heights and earing profile were analyzed. The results showed that varying the initial thickness distribution

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13

ANTONYUK, Vladimir E., Sergey O. NIKIFOROVICH, and Victor V. RUDII. "RATIONAL FOR REHEATING IN THE AUTOMATED LINE FOR RING BLANKS PRODUCTION." Mechanics of Machines, Mechanisms and Materials 3, no. 56 (2021): 61–69. http://dx.doi.org/10.46864/1995-0470-2021-3-56-61-69.

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Features and requirements to the use of reheating of ring blanks in the conditions of production on the automated line are considered. An assessment is given for a technological temperature state of ring blanks at various stages of production under conditions of the automated line. For assessment of rational for reheating at production of ring blanks, a classification of ring manufacturing technology is proposed with the production of a pressed non-core blank in an open die, with the production of a pressed profile blank in a closed die, with the production of a pressed profile blank in a stam

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14

Liu, Wen, Shui Sheng Xie, Ji Qiang Li, and Xu Ding. "Study on Formability of Tailor Welded Blanks Based on Numerical Simulation." Materials Science Forum 704-705 (December 2011): 45–49. http://dx.doi.org/10.4028/www.scientific.net/msf.704-705.45.

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The strength ratio, thickness ration of blanks and the microstructure of weld seam play important role in the formability of tailor welded blanks (TWB). With numeric simulation technology in different conditions such as different thickness and different strength combination of TWB’s materials, the forming limit depth (FLD) of tailor welded blanks is analyzed. The affect of the thickness ratio and strength ratio on forming limit depth is investigated, the laws influencing the formability of TWB square box are summarized, and approaches are presented to increase the FLD. The results of simulatio

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15

Dutta, A., and R. Sharma. "Prediction of Initial Blank Thickness and Thickness Profile after Superplastic Forming." Materials Science Forum 170-172 (October 1994): 757–62. http://dx.doi.org/10.4028/www.scientific.net/msf.170-172.757.

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16

Kruglov, Pavel V., and Irina A. Bolotina. "Technology of Manufacturing of Disk Blanks to High-Speed Elements for Tests on Anti-Meteoroid Protection." ITM Web of Conferences 35 (2020): 04013. http://dx.doi.org/10.1051/itmconf/20203504013.

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In this paper, a variant of the manufacturing technology of the disk blank for the segment liner of the shape charge is proposed. The charges are used to test the anti-meteorite stability of spacecraft. The proposed method makes it possible to form a blank in which, as its thickness decreases from the center to the periphery, a periodic profile variable in thickness is formed simultaneously in the circumferential direction. The disk metal blank is fixed in a three-cam chuck and the end face of the disk is cut with a decrease in thickness along the generatrix from the center to the periphery. U

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17

Zaker, Bahman, and Mohsen Loh Mousavi. "Numerical and Experimental Investigation of Influence of Weld Line Orientation on Formability in Deep Drawing of Tailor-Welded Blanks." Applied Mechanics and Materials 110-116 (October 2011): 1753–57. http://dx.doi.org/10.4028/www.scientific.net/amm.110-116.1753.

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Application of tailor welded blanks (TWBs) in automobile industry and aircraft manufacturing have been increased during past few years. Efficient material distribution and decreasing weight of the final part are some of the most important advantages of TWBs. Since tailor welded blanks are produced with at least two dissimilar and uniform or non-uniform thickness materials, they show different behavior than uniform materials during deep drawing process. In this research, the effect of weld line orientation on formability in deep drawing of tailor-welded blanks is examined using finite element s

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18

Reihani, A., L. Donat, S. Heibel, et al. "Analysis of process limits for partial hot stamping with controlled pre-cooling by radiation exchange." IOP Conference Series: Materials Science and Engineering 1284, no. 1 (2023): 012004. http://dx.doi.org/10.1088/1757-899x/1284/1/012004.

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Abstract The increasing demands on part complexity and tailored properties in form of local strength and ductility cannot be achieved with conventionally manufactured hot stamped body components. To meet the requirements of safety-relevant body parts, partial hot stamping is increasingly used in the automotive industry. One approach to achieve tailored properties on hot stamped parts is based on controlled cooling of the blank prior to forming and quenching. The related furnace technology is based on a furnace chamber in which a cooled aluminum mask protects local areas of the blank from therm

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19

Gautam, Vijay, Digavalli Ravi Kumar, and Ashish K. Shukla. "Effect of Punch Profile Radius on Springback in V-Bending of Tailor Welded Blanks Welded in Transverse Direction." Applied Mechanics and Materials 592-594 (July 2014): 1045–49. http://dx.doi.org/10.4028/www.scientific.net/amm.592-594.1045.

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Tailor welded blank (TWB) is an advancement in the field of sheet metal forming in which multiple blanks are welded together to create a single blank prior to forming process. Springback behaviour of TWBs in bending is complex due to thickness or material combination. In this research, the effect of punch profile radius on the springback of transversely welded strips has been investigated in V-bending operation with included bend angle of 90° and using punches with three different punch profile radii of 7.5, 10and 12.5 mm. TWBs were prepared by laser welding of interstitial-free steel blanks w

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20

Lin, Chong Chao, Ke Sheng Wang, Yu Han, and Li Han Zhang. "Press Forging Forming of the Round-Fin on Heat Sink." Advanced Materials Research 706-708 (June 2013): 448–51. http://dx.doi.org/10.4028/www.scientific.net/amr.706-708.448.

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Press forging forming is a combined extrusion process for forming round-fin on heat sink on thick metal sheets. A series of simulations on the round-fin forming using the program DEFORM were carried out. The blank thickness and friction coefficient on the formation of round-fin were studied. The results show that the blank thickness is very good for the round-fin formation, and the thicker the blank is, the better the round-fin can be formed; and also when both the punch-blank interface and the die-blank interface have the same value of friction factor, the larger value of friction factor is i

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21

Hu, Xiu Li, Hao Zhao, and Zhong Wen Xing. "Numerical Simulation and Experimental Study on the Weld-Line Movement of Tailor-Welded Blank." Advanced Materials Research 97-101 (March 2010): 357–60. http://dx.doi.org/10.4028/www.scientific.net/amr.97-101.357.

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TWB and its forming technology play important role in lightweight manufacturing for the automobile parts. The weld-line movement during TWB forming process affects the product quality greatly. In this paper, two main influence factors of the movement, BHF and the blank thickness at the both sides of the weld-line, were studied by both the experiments and finite element simulation. The results showed that BHF has significant impact on the weld-line movement, especially when the thickness difference of the blanks in TWB is beyond a certain range. Besides, suitable BHF and thickness of the blanks

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22

Bruni, Carlo, Giovanni Quercetti, and Massimiliano Pieralisi. "Friction Stir Lap Welding of Aluminium Alloys." Key Engineering Materials 611-612 (May 2014): 1421–28. http://dx.doi.org/10.4028/www.scientific.net/kem.611-612.1421.

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The friction stir welding of lap sheets can be performed considering different variables in terms of process parameters, tool configuration, welding typology and so on. The proposed investigation deals with the friction stir welding of blanks, with the same thickness, performed under lap configuration with the sheets welded, in one-side and in both sides as well, with different tool geometries and tool rotation-wise. The double side allows to extend the weld through the whole thickness leading to better mechanical welding properties at the blank to blank interface. The weld morphology has been

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23

Hassan, Ali, Hani Aziz, and Ola Hussein. "Development of reversed deep drawing without blank-holder for producing brass elliptical cup." International Journal of Engineering & Technology 7, no. 2 (2018): 578. http://dx.doi.org/10.14419/ijet.v7i2.8876.

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A new technique “Reverse Deep Drawing Process” without blank holder was adopted, for the single stage to produce an elliptical cup through an elliptical die. In this process an elliptical-cup is produced by pushing an elliptical blank using a hollow elliptical punch through an elliptical die in a single stroke. FEM via ANSYS is used to analyze this process. The clearance ratio was varied to study its effect on some parameters of this process like load, stress, strain, thickness distributions. A die with clearance =1mm and blank thickness=1mm gave the best drawability in this technique and no w

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24

Wang, Jin Lun, Feng Chong Lan, and Ji Qing Chen. "Study on Formability of Tailor-Welded Blank Based on Sheet Metal Matching." Advanced Materials Research 139-141 (October 2010): 618–21. http://dx.doi.org/10.4028/www.scientific.net/amr.139-141.618.

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As tailor-welded blank having two or more sheet metal welded together, with different mechanical properties, coating and thicknesses, its yield strength and tensile strength are higher, but hardening exponent and elongation are lower than a single sheet. The different mechanical properties of substrates and weld movement have significant effects on TWB’s formability, different materials or thicknesses easily lead to uneven deformation and forming defects such as cracking, wrinkle and springback. This paper takes tailor-welded box-shaped part for example; the forming process and weld movement w

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25

Abaas, Tahseen F., Karem M. Younis, and Khalida K. Mansor. "PREDICTION AND ENHANCEMENT OF THICKNESS REDUCTION IN MULTI-POINT FORMING PROCESS USING ANOVA ALGORITHM." IRAQI JOURNAL FOR MECHANICAL AND MATERIALS ENGINEERING 19, no. 1 (2019): 92–104. http://dx.doi.org/10.32852/iqjfmme.v19i1.268.

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Multipoint forming is an engineering concept which means that the working surface of the dieand/or punch is made up of hemispherical ends of individual active elements (called pins), whereeach pin can be independently, vertically displaced using a geometrically reconfigurable die,precious production time is saved because several different products can be made withoutchanging tools. The aim of this work is to present the effect of many parameters (blank Holdertypes, rubber thickness and forming speed) on the reduction of thickness for brass with 0.71 mmthickness. This research is concentrate on

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26

Subagiyo, Subagiyo, Sarjiyana Sarjiyana, Hadi Samsul, Suyanta Suyanta, and Asrori Asrori. "Analysis of Roller Tip Radius and Blank Thickness on The Aluminium Bowl Forming by Metal Spinning Method." RA JOURNAL OF APPLIED RESEARCH 09, no. 04 (2023): 194–99. https://doi.org/10.5281/zenodo.7813715.

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Metal spinning is used to form a circular metal plate by rotating the blank at high speed and then applying pressure using a roller regularly. So that, its shape will follow the shape of the mold or mandrel. There are still a few bowl-making industries in Indonesia that use the metal spinning method. In general, still use the manual method. The purpose of this study is to find the right and efficient parameters to produce the thickness and height of the bowl as expected. The method used in this study uses experimental data collection. This study uses variations in the radius of the roller tip

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27

Korouyeh, R. Safdarian, Hassan Moslemi Naeini, Golam Hosein Liaghat, and M. M. Kasaei. "Investigation of Weld Line Movement in Tailor Welded Blank Forming." Advanced Materials Research 445 (January 2012): 39–44. http://dx.doi.org/10.4028/www.scientific.net/amr.445.39.

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Weld line movement is one of the important parameters in Tailor Welded Blanks (TWB) forming. Weld line movement is important from some aspects: First, weld line position in the final part is so important because TWB part will be assembled with other parts and weld line movement can influence on assembling. Second, weld line movement which often is towardthe stronger (thicker) metal cause necking and fracture in weaker (thinner) metal. A forming criterion for tailor welded blank will be presented based on the analytical model in this research. This criterion suggests Limit Strength Ratio (LSR)

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28

Wu, Jie, Yuri Hovanski, and Michael Miles. "Investigation of the Thickness Differential on the Formability of Aluminum Tailor Welded Blanks." Metals 11, no. 6 (2021): 875. http://dx.doi.org/10.3390/met11060875.

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A finite element model is proposed to investigate the effect of thickness differential on Limiting Dome Height (LDH) testing of aluminum tailor-welded blanks. The numerical model is validated via comparison of the equivalent plastic strain and displacement distribution between the simulation results and the experimental data. The normalized equivalent plastic strain and normalized LDH values are proposed as a means of quantifying the influence of thickness differential for a variety of different ratios. Increasing thickness differential was found to decrease the normalized equivalent plastic s

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29

Zhou, Liu Ru, and Xian Wen Hu. "Finite Element Analysis of the Effect of Blank Holder Force on Deep Drawing of Bottom of Vacuum Flask." Advanced Materials Research 335-336 (September 2011): 483–86. http://dx.doi.org/10.4028/www.scientific.net/amr.335-336.483.

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Numerical simulation of deep drawing of bottom of vacuum flask is made by means of finite element software ANSYS/LS-DYNA and the potential defect was analyzed. The influence of the blank holder force on deep drawing quality is discussed .The results show that the maximal value of stress and thickness appears in the round corners of die .The maximal increased thickness is sheet flange and the maximal thinning is the round corners of punch. The larger is the blank holder force, the less equal is the thickness and the poorer deep drawing quality.

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30

Xu, Lingzhi, Lihua Zhan, Minghui Huang, Liang Guo, and Ziyao Ma. "Research on the Compound Process of Hot Stamping and Heat Treatment for Duralumin Alloy Fairing with Large Aspect Ratio: Experiment and modeling." MATEC Web of Conferences 190 (2018): 08003. http://dx.doi.org/10.1051/matecconf/201819008003.

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The compound process of hot stamping and solution quenching heat treatment (HFQ®) was utilized to fabricate hard aluminium fairing of high aspect ratio. A simulation model was established by MSC.Marc to optimize the shape and size of the blamk as well as the effects of process parameters, namely, initial temperature, stamping speed, blank holder force (BHF), on extreme final temperature and thickness distribution of formed component were investigated. The reliability of finite element simulation was proved by the hot stamping experiments with self-designed moulds under the optimize process par

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31

Chen, Tiantian, Bin Gong, and Chun’an Tang. "Origin and Evolution of Cracks in the Glaze Surface of a Ceramic during the Cooling Process." Materials 16, no. 16 (2023): 5508. http://dx.doi.org/10.3390/ma16165508.

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Because of the significant difference between the thermal expansion coefficients of ceramic blank and glaze, the glaze typically undergoes more pronounced shrinkage than the blank during ceramic cooling, which results in high stress concentrations and cracking. In this study, the mechanical mechanism of glaze cracking is studied, based on the statistical strength theory, damage mechanics, and continuum mechanics. Furthermore, the influence of the glaze layer thickness, heat transfer coefficient, expansion coefficient, and temperature difference on the creation and propagation of inner microcra

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32

Giuliano, Gillo, and Wilma Polini. "FEM Analysis of Superplastic-Forming Process to Manufacture a Hemispherical Shell." Applied Sciences 15, no. 14 (2025): 8080. https://doi.org/10.3390/app15148080.

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Superplastic materials are characterised by extreme lightness and remarkable ductility. Instead of a punch, a gas is used to push the sheet into the die cavity, and it is precisely regulated to control the material’s strain rate. Forming a superplastic material while maintaining a high strain rate sensitivity index requires the forming gas to follow a precise pressure–time loading curve. This can be excellently predicted with the aid of the finite element method (FEM). Therefore, for the superplastic material to exhibit its best formability throughout the entire process, it is necessary to con

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33

Du, Ji Tao. "FEA Forming Simulation of Thickness Nonliner Blanks." Applied Mechanics and Materials 201-202 (October 2012): 1000–1003. http://dx.doi.org/10.4028/www.scientific.net/amm.201-202.1000.

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Thickness Nonliner Blank (TNLB) is forming by flexible rolling system and is superior to Tailor Rolled Blank（TRB）,the thickness of TNLB belongs to nonperiodic, it can be used to make automobile panels for reducing material and lower light-weight. The rolling process model of TNLB was presented and rolling simulation model of TNLB was built by Deform，the better match for the rolling speed and roll vertical speed is the key to get the target curve, the comparison between simulation curve and target profile curve was discussed the influence of rolling by different parameters such angular velocity

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34

Mahdavian, S. M., and Z. M. Shao. "Isoviscous Hydrodynamic Lubrication of Deep Drawing and Its Comparison With Experiment." Journal of Tribology 115, no. 1 (1993): 111–18. http://dx.doi.org/10.1115/1.2920963.

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An analytical model for the isoviscous hydrodynamic lubrication of deep drawing is developed. The model covers the complete drawing stages from sheet metal blank to the drawn cup-shaped product. Equations to calculate the film thickness, radial, and drawing stresses related to the blank holder squeezing action are presented. Theoretical predictions of both film thickness and drawing force ratio for lubricated, low carbon steel are compared with experimental measurements.

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35

Li, Huicheng, Haixin Wang, Fei Yu, Haining Liu, Tingjun Chen, and Sheng Liu. "Research on solidified shell thickness in continuous casting blank." Journal of Physics: Conference Series 2390, no. 1 (2022): 012036. http://dx.doi.org/10.1088/1742-6596/2390/1/012036.

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Abstract The stability of solidified shell thickness plays an important role in continuous casting. In this paper, 220mm × 260mm section continuous casting blank of an electric furnace company is taken as the research object. Under the condition of solidification process, the solidification shell thickness is simulated by the physical model established and ANSYS software. At the same time, according to the calculation formula of solidified shell thickness, combined with the specific data location of the designed and measured solidified shell thickness test, the good match between the experimen

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36

Yu, Yan Dong, and Cai Xia Li. "Numerical Simulation of Magnesium Alloy AZ31B Sheets with Thermal Deep-Drawing Process." Materials Science Forum 546-549 (May 2007): 289–92. http://dx.doi.org/10.4028/www.scientific.net/msf.546-549.289.

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The finite element numerical simulation for the formability of magnesium alloy AZ31B sheets with thickness of 0.8mm and diameter of 140mm has been proceeded to investigate the formability using the current finite element software. Under the condition with blank holder force of 8KN and deep drawing speed of 0.3mm/s at 200, the sytematic analysis and prediction of the thickness change and the forming rule for thesimulation process of the blank has been carried out. Under the same parameter, the drawing parts by deep drawing with a hydaulic machine were obtained and the thickness tested. It has b

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Albut, Aurelian, and Vlad Andrei Ciubotariu. "The Influence of the Blank Holder Force on Material Thinning during Forming of a Rectangular Part Made from Tailor Welded Blanks." Advanced Materials Research 1036 (October 2014): 344–48. http://dx.doi.org/10.4028/www.scientific.net/amr.1036.344.

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The current work deals with numerical simulation connected to forming of a rectangular shaped part made from tailored blanks, having the welding line positioned symmetrical with respect to the part geometry. The objective was to study the relation between the blank holder force applied during forming and the thinning of the parents materials. All the parameters are fixed except the blank holder force, its variation will cause variation of the material thinning. The presented work is trying to demonstrate the important role of the blank holder force on the material thinning during the deep draw

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Jiang, Yin Fang, Zhi Fei Li, Zhen Zhou Tang, and Lei Fang. "Study on the Drawing and Trimming Springback Characteristics of Hyperboloid Shallow Shell of Tailor Welded Blanks." Key Engineering Materials 464 (January 2011): 438–42. http://dx.doi.org/10.4028/www.scientific.net/kem.464.438.

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With more and more attention to the technology of tailor welded blanks (TWBs), it is vital to study the springback of TWBs. In this paper, the springback law of parallel and perpendicular to the weld of TWBs hyperboloid shallow shell affected by blank holder force, punch string height, and the difference of blank thickness was researched by finite element software. The results show that: by means of drawing and trimming, the springback of TWBs can be reduced, and the curvature of TWBs is less parallel to the weld, but the curvature is larger perpendicular to the weld. The effect of blank holde

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Wang, Min. "Blank Thickness Effects on Rolling Force in Hot Rolling of Titanium Alloy Large Rings." Advanced Materials Research 189-193 (February 2011): 2651–54. http://dx.doi.org/10.4028/www.scientific.net/amr.189-193.2651.

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For hot rolling of titanium alloy large rings, rolling force is very important for designing, choosing and optimizing of processing plan and rolling mill. In the paper, the average shape parameter of the deformation zone of ring rolling is presented first, and then a reliable coupled thermo-mechanical three-dimensional (3D) finite element (FE) model for the process is developed. Finally, influences of the blank outer radius R0 and inner radius r0 on rolling force are discussed and compared for exploring blank thickness effects. The main results show that decreasing the blank thickness by decre

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Xuhao, Zhang, Miao Jiafeng, Zhang Shaohuai, and Jian Wenfang. "Study on the Law of Blank and Material Properties on the Free Bending of Pipes." Journal of Engineering Research and Reports 25, no. 8 (2023): 178–86. http://dx.doi.org/10.9734/jerr/2023/v25i8971.

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To explore the impact of various material parameters on the three-dimensional free bending behavior of metal pipes and enhance the quality of such bending processes, this study focused on TP2 copper pipes with dimensions Φ12mm×1mm. Under uniform conditions of process parameters, free bending equipment, and key component characteristics, pipes with varying wall thicknesses and materials were investigated. The evaluation criteria were based on the maximum wall thickness thinning rate and maximum ellipticity of the pipes. The investigation aimed to understand how alterations in different material

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Zamani, S. Ali, and Morteza Hosseinzadeh. "Investigation of the Effect of Blank Shape on the Sheet Hydroforming Parameters." Applied Mechanics and Materials 152-154 (January 2012): 1658–63. http://dx.doi.org/10.4028/www.scientific.net/amm.152-154.1658.

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In the deep drawing processes, the use of an optimal blank shape not only saves the material but also it may reduce the occurrence of defects e.g. wrinkling and tearing. In addition, finding the desirable flange contour, eliminate the trimming step in the deep drawing of parts with flange. The main objective of this study is to optimize the blank shape in order to produce a cylindrical cup with desirable flange contour and investigation of its effect on important parameters. Presently, to overcome this issue, a very expensive and time consuming trial and error method is used. In this study, a

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Hildenbrand, Philipp, Thomas Schneider, and Marion Merklein. "Flexible Rolling of Process Adapted Semi-Finished Parts and its Application in a Sheet-Bulk Metal Forming Process." Key Engineering Materials 639 (March 2015): 259–66. http://dx.doi.org/10.4028/www.scientific.net/kem.639.259.

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By applying bulk forming processes on sheet metals, thin-walled functional components with locally restricted wall thickness variations can be manufactured by forming operations. Using tailored blanks with a modified sheet thickness gradient instead of conventional blanks, an efficient controlling of the material flow can be achieved. One possible process to manufacture these semi-finished parts is a flexible rolling process. Based on an established process strategy new results for steels of differing strength and work-hardening behavior are presented in this paper. The influences of each mate

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Wang, Bao Shan, Jing Chen, Cheng Hsien Yu, and Jinn Jong Sheu. "Modelling of Neutral Line Parameter for Sheet Metal Stamping and Roll Forming Processes." Solid State Phenomena 311 (October 2020): 41–47. http://dx.doi.org/10.4028/www.scientific.net/ssp.311.41.

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The blank development of sheet metal for the stamping and the roll forming processes is crucial for the dimensional accuracy of the products. The neutral line parameter is the indicator to present the thinning phenomenon at the bending corners of the products. The basic assumption of the neutral line position is the surface that the sheet metal remains un-deformed after the stamping or the roll forming process. The conventional determination method of the neutral line position is based on the zero strain position through the thickness direction of the blank. In this paper, a different neutral

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Mao, Xian Chang, Lian Fa Yang, Yun Liu, and Shi Yang Li. "Thickness of Magnesium Alloy Square Parts in Hydraulic Deep Drawing." Applied Mechanics and Materials 347-350 (August 2013): 1187–91. http://dx.doi.org/10.4028/www.scientific.net/amm.347-350.1187.

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Forming effect of square parts is influenced greatly by technical parameters in hydraulic deep drawing, and it is significative to investigate the parameters. The technical parameters which influence the cold forming effect (wall thickness difference and minimum wall thickness) were introduced in detail by numerical simulation method, including the load method of blank holder force, drawing speed, hydraulic pressure, etc. Furthermore, the reasonable technological parameters were concluded and the wall thickness distribution of magnesium alloy square parts was discussed in this paper. The resul

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Chen, Shui Sheng, Jian Pin Lin, and Jing Liu. "Effect of the Thickness Ratio on the Failure Modes of Tailor Welded Blanks." Advanced Materials Research 189-193 (February 2011): 2965–69. http://dx.doi.org/10.4028/www.scientific.net/amr.189-193.2965.

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Tailor welded blanks (TWBs) offer several notable benefits including decreased part weight, reduced manufacturing costs, increased environmental friendliness, and improved dimensional consistency. To take full advantage of these benefits, however, one needs to overcome the reduced formability of TWBs and be able to accurately predict the failure modes depending on the thickness ratio between the thicker and thinner sheets of a tailor welded blank with similar base materials early in the design process. In this paper, we studied the effect of the thickness ratio on the limit dome height of TWBs

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Chen, Wei, Zhi Feng Chen, Zhi Fu Cao, Tao Qi, Xiang Wang, and Qing Zhao. "Study on the Hot Stamping of Rectangular Box with Ultra-High Strength Steel." Advanced Materials Research 763 (September 2013): 156–59. http://dx.doi.org/10.4028/www.scientific.net/amr.763.156.

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Hot stamping of the ultra high strength steel (UHSS) was studied to meet the requirements of lightweight of automobile. The coupled thermo-mechanical model for hot stamping was established with ABAQUS. Initial temperature of tools (die, punch, blank holder) and stamping speed were studied to insure the impact on the thickness, stress and strain of blank. It shows that punch fillet area is easy to crack. With the temperature of tools increasing, the sheet minimum thickness increases first and then decreases. With the increase of punch velocity, the sheet minimum thickness increases. Compared wi

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Li, Wenfeng, Zhiqiang Zhang, Hongjie Jia, and Mingwen Ren. "The Optimization of Welding Spots’ Arrangement in A-Pillar Patchwork Blank Hot Stamping." Metals 13, no. 8 (2023): 1409. http://dx.doi.org/10.3390/met13081409.

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With increasingly severe environmental problems, energy saving and environmental protection have become two important issues to be solved in the automobile industry. Patchwork blank hot-stamping technology can be used to obtain light-weight and high-strength parts and is thus increasingly used in the manufacture of autobody parts. Because the main blank and the patched blank need to be connected through spot welding before forming, the welding spots’ arrangement has a great influence on the formability of the part. In this study, a thermal–mechanical coupling finite element analysis model of A

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Kothari, Kartik D., and R. L. Jhala. "Investigation and Parametric Analysis of Steel Perforated Sheet Metal (PSM) for Optimum Forming Process." International Journal of Engineering Research in Africa 21 (December 2015): 118–23. http://dx.doi.org/10.4028/www.scientific.net/jera.21.118.

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This research paper deals with the finite element analysis of forming process of Steel perforated sheet metal (PSM). Simulations are conducted to scrutinize the impact of material thickness, type of blank, blank shape, shape & pattern of perforation, pitch of perforation etc on stress and load-displacement curve for set of results. Modeling of part files are done on software CATIA V5 which is later imported to FEA software package. Numerical method is used to determine optimum results with reference to process parameters as blank thickness punch velocity and stress distribution during the

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Chen, M. T., X. T. Xiao, J. H. Tong, H. Guo, F. Q. Zhou, and F. Zhou. "Dimensional optimization of variable thickness tube in T-shaped tube hydroforming using response surface methodology." IOP Conference Series: Materials Science and Engineering 1270, no. 1 (2022): 012073. http://dx.doi.org/10.1088/1757-899x/1270/1/012073.

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In this work, a variable thickness tube blank geometry is proposed to be used in T-shaped tube hydroforming. The dimensions of the tube blank are optimized by the response surface method (RSM) linked with finite element simulation during T-shaped tube hydroforming. The influence of the wall thickness, angle and length of the tube blank are discussed on the thinning ratio and branch height. Multi-objective functions that relate objectives and design variables are formulated. Furthermore, the design variables having greatest impact on the objectives are obtained by sensitivity analysis. The opti

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Zhou, Liu Ru, and Hai Ming Wan. "New Method for Blank Expansion of Rectangular Box." Advanced Materials Research 308-310 (August 2011): 1004–7. http://dx.doi.org/10.4028/www.scientific.net/amr.308-310.1004.

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The principle of NC incremental sheet metal forming as well as the process planning, experiment of the square conical box forming are presented. Because the deformation of sheet metal only occurs around the tool head and the deformed region is subjected to stretch deformation and thins, and surface area increases. Sheet metal forming stepwise is to lead to the whole sheet metal deformation. The sine law indicates that the thickness of the square conical box wall is close to zero when the half-apex angle of the square conical box wall is close to zero. Therefore, we must know the forming limit

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