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Rectangular deep drawing Variable Blank Holder Force Numerical Simulation and Experimental Study

Author: ZhangXuDong
Tutor: WuJianJun
School: Northwestern Polytechnical University
Course: Aviation Aerospace Manufacturing Engineering
Keywords: Rectangular pieces Variable Blank Holder Force Numerical Simulation
CLC: V261
Type: Master's thesis
Year: 2006
Downloads: 223
Quote: 9
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Abstract


The drawing is a very important part forming method, widely used in the automotive, aircraft and other industrial fields . In engineering practice , the workpiece is rectangular pieces of a typical representative of the non - axisymmetric complex shapes . Therefore , on rectangular pieces of deep drawing process has a very good academic value and practical significance . BHF as the impact of the deep drawing of one of the important parameters , has always been the focus of the research of scholars from various countries . Rectangular deep drawing Variable Blank Holder Force In this paper, the numerical simulation technology , the main contents are as follows: the forming mechanism of rectangular pieces of sheet metal forming finite element theory , using the finite element analysis software ANSYS / LS -DYNA finite element model of rectangular deep drawing overall rectangular pieces of blank holder and block blank holder , respectively, in the given BHF Variable Blank Holder Force ( with punch cases of stroke or blank holder position change ) drawing formability . The simulation results show that the variable blank holder force control technology can significantly improve the formability of rectangular pieces to increase the limit of rectangular pieces of drawing . Finally, from the rectangular pieces pull during deep analysis of the needs of the BHF put forward the principle of variable blank holder force control method Variable Blank Holder Force drawing experimental system . Methods and findings of this study have certain guiding significance BHF deep drawing adjustments and reference .

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CLC: > Aviation, aerospace > Aviation > Aeronautical Manufacturing Technology > Manufacturing process and equipment
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