1) socket drill
锪窝钻
1.
Employing the method of complex helical drill point design,the formula of the clearance angle of inner cut edge for the socket drill is derived and the relationship between the clearance angle and the slantwise angle of the inner cut edge is deduced to innovate the design and manufacture of the socket drill.
通过复杂螺旋面钻尖设计方法导出锪窝钻钻尖内刃后角公式及内刃后角与内刃偏角的关系表达式 ,改进了锪窝钻的设计与制造。
2) countersink drill
锪钻
1.
Improvement and optimization of titanium alloys countersink drill;
钛合金锪钻改进与优化设计
3) dimple hole
锪窝孔
1.
First, critical sits are obtained by the FEA of dimple hole structure without fanlike cracks around its hole.
根据航空等领域内锪窝铆接及锪窝锣接构件的典型结构特征 ,采用三维的十节点四面体等参有限单元模型 ,分别对无裂纹及孔边含裂纹锪窝孔 /直通孔结构进行了模拟分析 ;得到了锪窝孔构件的危险部位及90°,1 2 0°锪窝孔边扇形角裂纹的应力强度因子 ,给出了覆盖面广的计算曲线 ;通过对计算结果的分析 ,讨论了裂纹长度、孔径以及板厚等因素对应力强度因子的影响。
4) Facing cutter
端面锪钻
5) Counterbore
[kauntə'bɔ:]
尖底锪钻
6) counterbore
[kauntə'bɔ:]
平板锪钻
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