Development of dry precision punting process utilizing rapid surface coating

本研究旨在开发快速类金刚石（DLC）涂层干式精密冲压工艺。采用纳米脉冲等离子体化学气相沉积法在常压下制备了类金刚石薄膜。沉积的DLC膜含有小于27atm.%的氢，并表现出大于10 GPa的纳米压痕硬度。将涂层工艺应用于冲压工艺中，发现DLC涂层可以防止铝工件与冲头表面的粘附，从而稳定冲压力。

This research aims development of dry and precision punching process utilizing rapid Diamond-like carbon(DLC) coating. DLC coating was performed at atmospheric pressure by nano-pulse plasma chemical vapor deposition method. DLC films deposited contain less than 27 atm.% of hydrogen and exhibits larger than 10 GPa in nano-indentation hardness. Coating process was applied to punching process and we found that punching force was stabilized by DLC coatings because DLC coating prevent from adhesion of aluminum work piece on punch surface.