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1. 发明授权

US3803905A Device for machining an accurately dimensioned annular groove around a circular measuring area for measuring intrinsic stresses in structural components of machines and apparatus 失效
标题翻译：用于在机械和设备的结构部件中测量内部应力的圆形测量区域上加工精确尺寸的环形槽的装置
公开(公告)号：US3803905A
公开(公告)日：1974-04-16
申请号：US23672172
申请日：1972-03-21
申请人： WOLF H , BOHM W , STUCKER E
发明人： BOHM W , STUCKER E , WOLF H
IPC分类号： B23C3/28 , G01B7/16 , G01L1/00 , G01L5/00 , G01N19/00 , G01B7/18
CPC分类号： G01B7/18 , G01L5/0047
摘要： There is included in apparatus for checking a structural component for intrinsic stresses by attaching strain gage means to a surface measuring area of the component, cutting an annular groove into the component around the area, measuring through terminal leads extending from the strain gage means the change in electrical response of the strain gage means, due to the cutting of successive layers of material out of the groove, as indicative of the intrinsic stress existing prior thereto, and measuring the depth of the layer of removed material or the corresponding depth of the groove after each incremental cut, a crown boring tool for machining the annular groove around the measuring area, the tool having a shaft hollow throughout and being mounted in a hollow boring spindle whereby the terminal leads of the strain gage means attached to the measuring area are extensible through the tool and the hollow spindle.
摘要翻译：包括在用于通过将应变计装置附接到部件的表面测量区域来检查固有应力的结构部件的装置中，将环形槽切割到围绕该区域的部件中，通过从应变计延伸的端子引线进行测量意味着变化在应变计装置的电响应中，由于将连续的材料层从凹槽中切割出来，表示存在于其之前的固有应力，并且测量去除材料层的深度或凹槽的相应深度在每个增量切割之后，用于在测量区域周围加工环形槽的胎冠钻孔工具，该工具具有整个中空的轴中空并且安装在中空镗孔中，由此连接到测量区域的应变计装置的端子引线是可扩展的通过工具和中空心轴。

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