公开(公告)号：US3934319A

公开(公告)日：1976-01-27

申请号：US570301

申请日：1975-04-21

申请人： Paul A. Schuler

发明人： Paul A. Schuler

IPC分类号： B23C5/20 ,  B26D1/00

CPC分类号： B23C5/207 ,  B23C2200/201 ,  B23C2200/283 ,  Y10T407/23

摘要： Improved point geometry is provided for cutting inserts wherein the insert point is subjected to physical and thermal shock in first contacting the stock to be cut and is particularly applicable to cemented carbide or hard metal inserts. It has been found that the provision of about a 104.degree. included angle at the initial work-contacting or lead portion of the insert tip provides improved resistance to physical and thermal shock and longer insert life. While the new cutting insert is especially useful in interrupted cutting where the insert is continuously engaged and disengaged as in the case of a series of cutting inserts in a milling head in contacting an uneven surface, it is also applicable to boring and turning operations and to continuous cutting where the insert point is stressed.

摘要翻译： 提供了用于切削刀片的改进的点几何形状，其中插入点在首先接触待切割的坯料时受到物理和热冲击，并且特别适用于硬质合金或硬质金属刀片。 已经发现，在插入件尖端的初始接触或引导部分处提供大约104°的夹角提供了改善的抵抗物理和热冲击以及更长的插入寿命。 虽然新的切削刀片在中断切削中特别有用，其中插入件连续地接合和脱开，如在铣头中的一系列切削刀片的情况下接触不平坦的表面时，其也适用于镗削和车削操作，并且 连续切割，插入点受到压力。