TOOL FRACTURE AT THE END OF A CUT .1. FOOT FORMATION

被引：13

作者：

RAMARAJ, TC ^{[1
]}

SANTHANAM, S ^{[1
]}

SHAW, MC ^{[1
]}

机构：

[1] ARIZONA STATE UNIV,TEMPE,AZ 85287

来源：

JOURNAL OF ENGINEERING FOR INDUSTRY-TRANSACTIONS OF THE ASME | 1988年 / 110卷 / 04期

关键词：

Fracture Mechanics - Strain - Stresses--Shear;

D O I：

10.1115/1.3187891

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Refractory metal cutting tools exhibit an unusually high probability of edge chipping and gross fracture when suddenly unloaded after cutting a strong material at high speeds and feeds. After identifying three possible mechanisms of brittle fracture when a cutting tool exits a cut, that associated with so-called 'foot' formation is discussed in detail. This involves a sudden shift from steady state chip formation by concentrated shear to gross fracture of the workpiece as the end of the cut is approached. The other possible mechanims are discussed in a companion paper to follow.

引用

页码：333 / 338

页数：6