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Article ID: 1003-6326(2005)02-0395-05 Noise reduction of punch press mechanical clutch engagement CHEN Wei(陈 威)1, 2, 3, SUN Chang-qing(孙长青)1, LI Yun-liang(李运良)1 (1. Department... of Materials Physics and Chemistry, Harbin Institute of Technology, Harbin 150001, China) Abstract: Among the noises of the punch press, blanking noise and engaging noise of the clutch should be paid most......
diameter is 5 mm, the die diameter is 5.07 mm and the speed of punch shearing is 5 mm/s. The punch shearing principle, specimens and profile of section are shown in Figure 2. Before the experiment... ARTICLE J. Cent. South Univ. (2019) 26: 1582-1591 DOI: https://doi.org/10.1007/s11771-019-4114-7 Influence of AZ31 sheet treated by cryogenic on punch shearing HU Zhi-qing(胡志清)1, 2, GUO Chao-fan(郭超......
J. Cent. South Univ. (2018) 25: 747-753 DOI: https://doi.org/10.1007/s11771-018-3779-7 Elastic and plastic deformation behavior analysis in small punch test for mechanical properties evaluation..., part of Springer Nature 2018 Abstract: In order to estimate deformation and mechanical properties of material accurately, elastic and plastic deformation behavior of small punch test was discussed......
rotational speed during ion irradiation. Three kinds of ion irradiation time were 30, 60 and 120 min. The surface roughness was measured to evaluate the surface quality of micro punch after ion... Surface finish of micro punch with ion beam irradiation XU Jie(徐 杰)1, 2 , WANG Chun-ju(王春举)1, 2, GUO Bin(郭 斌)1, 2, SHAN De-bin(单德彬)1, 2, Y. SUGIYAMA3, S. ONO3 1. School of Materials......
Trans. Nonferrous Met. Soc. China 22(2012) s534-s541 Effect of tool temperature and punch speed on hot stamping of ultra high strength steel LIU Wei1, 2, LIU Hong-sheng3, XING Zhong-wen3, LIU Gang1... at elevated temperatures. In addition, hot stamping experiments were conducted and combined with the simulation to investigate the effect of tool temperature and punch speed on the hot stamping of UHS sheet......
Inverse speed analysis and low speed control of underwater vehicleLI Ye(李晔)1, 2, JIANG Yan-qing(姜言清)1, 2, MA Shan(马珊)1, 2, CHEN Peng-yun(陈鹏云)1, 2, LI Yi-ming(李一鸣)1, 2(1. Science and Technology on Underwater Vehicle Laboratory (Harbin Engineering University), Harbin 150001, China;2. College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China)Abstract:Inverse speed......
using a 50 kN servo-electrical testing machine. Since the SPT is a quasi-static experiment, all the shear punch tests were performed with a punch speed of 0.004 mm/s. For each test condition listed... Engineering, Faculty of Engineering, Bu-Ali Sina University, Hamedan 65178, Iran Received 21 November 2017; accepted 24 April 2018 Abstract: The shear punch test (SPT) is a suitable experiment......
Measuring speed consistency for freeway diverge areas using factor analysisQU Xu(曲栩)1, GUO Tang-yi(郭唐仪)2, WANG Wei(王炜)1, HU Qi-zhou(胡启洲)2(1. School of Transportation, Southeast University, Nanjing, 210096, China; 2. School of Automation, Nanjing University of Science and Technology, Nanjing 210094, China)Abstract:Although either absolute speed or speed difference can be considered as a measure......
, target forming depth, punch speed, coefficients of friction and formed diameters of the multilayer parts are kept similar. However, the layup configurations and the thicknesses of the GGB are changed.... In addition, the friction at different regions and the additional interlayer contacts can also affect the thinning of different regions as well as increase the punch force. This work will enhance......
, hemispherical punch diameter was 100 mm, punch speed was 35 mm/min, and the applied blank holder force was 110 kN. Polyethylene film wrapped Vaseline was utilized as lubricants between the moulds and blank... of plastic constitutive relations and Hosford yield criteria. Hemispherical punch bulging tests were performed to verify the FLD theoretical calculation results. The results demonstrated that not only......