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用硬质合金制造镶块来强化冷镦凹模,若应用得当.可提高寿命数倍至十几倍,经济效益十分可观。如应用不当,则寿命提高不多,就得不偿失。可用硬质合金强化切断模、切断刀、镦锻凹模和镦锻凸模。本文主要阐述如何正确使用硬质合金强化冷镦螺栓、螺钉的硬质合金凹模,以及凹模的结构尺寸设计、压装过盈量及压装方法等。一硬质合金强化的使用范围硬质合金材料的硬度和耐磨性是任何一种模具钢所无法相比的。但它的最大弱点是冲击
Inlays made of cemented carbide to strengthen the cold upsetting die, if properly applied, can increase the life of several times to ten times, the economic benefits are considerable. If improperly applied, then the increase in life expectancy, it is worth the candle. Carbide can be used to strengthen the cutting mold, cutting knife, upsetting die and upsetting punch. This article mainly elaborates how to correctly use the hard alloy to strengthen the cold heading bolt, the hard alloy die of the screw, as well as the die size structure design, the amount of interference fit and press-fit method. A hard alloy to strengthen the use of Carbide material hardness and wear resistance is not comparable to any kind of mold steel. But its biggest weakness is the impact