The study of the effect of die hardness on galling of high strength steel
The study of the effect of die hardness on galling of high strength steel
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发表时间：
2008
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通讯作者：
Li Shu-hui
中科院分区：
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作者：
Li Shu-hui
高强度钢的使用减轻了汽车覆盖件的重量，减轻了能源和环境问题，但也比普通钢更容易产生粘扣，粘扣不仅影响了汽车覆盖件的性能，而且增加了冲压件的废品率，为了提高覆盖件的表面质量，本文根据冲压车间的实测数据和模拟试验，着重讨论了拉深模表面硬度对拉深模粘扣的影响，研究表明，拉深模粘扣主要存在于拉延筋和拉深模的表面，高表面硬度的模具可以抑制汽车覆盖件冲压过程中粘扣的发生。
The use of high strength steels reduces the weight of auto panel,alleviates the energy and environment problems,but it also arouses the galling more easily than the common steels.The galling not only affects the performance of auto panel but also increases the rejection ratio of stamping parts.In order to improve the surface quality of auto panel,the effect of drawing die's surface hardness on the galling is especially discussed in this paper based on the datum measured in the stamping workshop and the simulating test.The research indicates that the galling mainly exists about the drawbeads and the high surface hardness of the die can restrain the occurrence of galling in the stamping of auto panel.