公开(公告)号：US20160368065A1

公开(公告)日：2016-12-22

申请号：US15183023

申请日：2016-06-15

Applicant: CITIC Dicastal CO., LTD

Inventor： Huiying Liu ,  Xiaoguang Huang ,  Jiandong Guo ,  Yun Han ,  Yuexin Lu ,  Zhiyuan Yu ,  Minghua Liu ,  Yongning Wang ,  Zhihua Zhu ,  Changhai Li

IPC: B23B35/00 ,  B60C29/02 ,  F16K27/00

CPC classification number: B23B35/005 ,  B23B35/00 ,  B23B41/12 ,  B23B2215/08 ,  B23B2222/04 ,  B23D75/00 ,  B60B2310/226 ,  B60B2310/228 ,  B60B2310/234 ,  B60B2360/104 ,  F16K27/00

Abstract: The present invention provides a machining method of a valve hole and the valve hole machined with the method, wherein the method includes the following steps: (1) performing drilling machining for a valve hole by adopting a valve hole drill bit to achieve a predetermined machining dimension; (2) performing fine machining by adopting a reamer to allow the diameter of the valve hole to reach a stable dimensional state and removing impurities and aluminum scraps on the surface of the valve hole, thereby meeting the requirement of final fine grinding extrusion machining for a blank; and (3) performing final precision machining by adopting a grinding extrusion tool. A technical solution of the present invention can improve the machining precision and strength for the valve hole, prevent the generation of hot cracks and improve the anti-fatigue strength of the valve hole by more than 20%.

Abstract translation: 本发明提供一种阀孔的加工方法和利用该方法加工的阀孔，其特征在于，该方法包括以下步骤：（1）通过采用阀孔钻头实现预定加工，对阀孔进行钻孔加工 尺寸; （2）通过采用扩孔器进行精加工，以使阀孔的直径达到稳定的尺寸状态，并且去除阀孔表面上的杂质和铝废料，从而满足最终细磨加工的要求 空白; 和（3）采用研磨挤压工具进行最终精密加工。 本发明的技术方案可以提高阀孔的加工精度和强度，防止产生热裂纹，提高阀孔的抗疲劳强度20％以上。