Cracking of H13 steel dieblank for fan impellers was analyzed by means of SEM, EDS and metallographic microscope.
通过电镜、能谱分析、金相分析等手段对H13钢制风机叶轮模坯开裂进行了综合分析。
2
To introduce the points needed to be attended during machining the dieblank and die sleeve and inserting die core.
介绍拉丝模模坯、模套的加工及模芯装镶过程中应注意的要点；
3
Analyzing the craft features of a punching piece, ascertain the process and scheme of a progressive dieblank layout, and the design of main die working parts and final assembly structures.