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拉痕 [lā hén]
drawing stamp
- 数值模拟结果表明:使用多点模具直接进行蒙皮拉形,成形件表面将出现压痕。
Numerical simulation results show that dimples will occur on the surface of deformed parts if the sheet metal is stretched directly by the multi-point die. - 结果显示,单拉预变形过程的应变强化将显著提高钢板的强度和局部凹痕抗力。
It is shown that the strain strengthening will obviously improve the strength of sheet steel and the local dent resistance. - 本文以4种不同屈服强度的钢板为研究对象,开展了不同单拉预变形条件下板材局部凹痕抗力试验。
With the increasing of yield strength of steel sheet,the load in certain dent depth will increase.
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