Development of Long-Life Die used for High Strength Steels with Hybrid-Shot Treatment and Nitriding at Low Temperature
The methodologies of controlling the surface texture of die by hybrid (double)-shot treatment and nitiding at a low temperature were examined for the development of long life cycle die applied to the high strength steel sheets. Hybrid-shot improved the galling property because of its lubricating effect, while nitriding at low temperature which is useful for decreasing distortion by heat-treatment had sufficient hardness of Hv 1500 for anti-abrasion. Surface texture of die material, evaluated by using Fast Fourier Transformation (FFT) analysis revealed that the ratio of the spectrum amplitude between high and low frequencies was corresponding to the galling generation load.
die shot-treatment nitriding surface tezture Fast Fourier Transformation
Osamu Furukimi Masatoshi Aramaki Naoya Yamada
Kyushu University,Fukuoka,Japan
国际会议
The Fourth Asian Conference on Heat Treatment and Surface Engineering(第四届亚洲热处理及表面工程大会)
北京
英文
43-46
2009-10-27(万方平台首次上网日期,不代表论文的发表时间)