共搜索到7412条信息，每页显示10条信息，共742页。用时：0小时0分0秒308毫秒
the numerical simulation forming limitation diagram when the pre-bulging height was 70 mm. There was no pressure acting on the blank in the preliminary stage of HDD process. As stated above, the highest sheet blanks contact with punch in local area, so the sheet metal becomes thin excessively, and the fracture occurs around the punch nose at the initial time of forming, as shown in Fig. 4(a). Fig. 8......
forming is a novel die-less sheet forming process. There is a need for special means to retain lubricant at the tool/sheet interface during forming. To fulfill the stated aim, a porous ceramic film...Application of Ceramic Film as Means of Lubrication for Forming of TiSheet in a Highly Localized Deformation ProcessGHULAM Hussain1,ASIF Iqbal21. Department of Mechanical Engineering, Eastern......
......
Formability influenced by process loading path of double sheet hydroformingLIU Wei1, LIU Gang2, CUI Xiao-lei1, XU Yong-chao1, YUAN Shi-jian1(1. State Key Laboratory of Advanced Welding and Joining... sheet hydroforming can be used to manufacture hollow part with complicated section geometries by allowing material draw-in under an appropriate process loading path. Two major parameters, clamping force......
Trans. Nonferrous Met. Soc. China 23(2013) 2666-2677 Flexible-die forming process with solid granule medium on sheet metal Guo-jiang DONG1, Chang-cai ZHAO1, Miao-yan CAO2 1. Key Laboratory... experiments, numerical analysis in respect of flexible-die forming process with solid granule medium (SGM) was conducted. The die and device for experiments of solid granule medium forming (SGMF) on sheet......
work has been carried out on the influence of material and temperature on cavitation under biaxial tension. Since biaxial stretching is the dominant stress state in the superplastic sheet blow forming... in studying SPF. In this paper, the experiments were carried out in two superplastic fine grained 5083 aluminum alloy sheet under biaxial tension at 475, 500 and 525 ℃. The forming limited diagram......
processes. A first step in accomplishing dry sheet metal forming is to gain knowledge about the changing tribological conditions and to identify the relevant influencing parameters. The commonly used flat...Investigation of Influencing Parameters for Tribological Conditions in Dry Forming ProcessesJennifer Steiner,Marion MerkleinInstitute of Manufacturing Technology, Friedrich-Alexander-Universit?t......
by conventional hemispherical punch in doubly curved sheet metal reconfigurable die forming process were considered.The rotatable cubic punch (RCP) was developed to suppress the dimpling defects more...Dimpling Suppression by Chamfered Rotatable Cubic Punch in Reconfigurable Die Forming蔡一杰1,2,胡勇1,2,XIONG Jie2,WANG Chengfang21. Key Laboratory of High Performance Ship Technology (Wuhan University......
......
of sheet, but deep drawing of the inhomogeneous material has been studied among a few researchers[4-6]. TAKUDA et al[7] have predicted the forming limit of Fe/Al laminated composite sheets in deep... different types of sheet metal forming processes like deep drawing, stretch forming, bending, etc, to predict the stresses, strain, thickness distribution, punch load and effect of various design......
