Author:
Zhang Chang-Ming,Mu An-Le,Wang Yong-Xin,Shen Qi,Zhang Hui
Abstract
Based on the orthogonal experimental design, the effect mechanism of different processing parameters on the surface microhardness and metal microstructure of TC18 titanium is studied. Meanwhile, the variation law of milling force and surface roughness of TC18 titanium alloy during high-speed
milling is obtained. The results show that the milling depth has the greatest influence on the milling force under down-milling. Meanwhile, the milling depth and spindle speed have the greatest influence on the milling force in up-milling, which with the increase of milling depth and with
the increase of spindle speed and downward trend. The greatest influence of surface roughness is the milling depth, and the surface roughness decreases with the increasing of milling depth. After milling complete, the surface hardness of TC18 titanium alloy work piece decreases. With the surface
depth increases to 0.01 mm, the hardness is slightly higher than the matrix hardness. The microstructure of TC18 matrix is mainly β phase by observing the metallographic structure. The equiaxed α phase grows after milling.
Publisher
American Scientific Publishers
Subject
General Materials Science
Cited by
2 articles.
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