A countersunk hole processing method of wear-resistant liner
A processing method and technology of wear-resistant liners, which are applied in the field of hole processing, can solve the problems of inconvenient processing methods for countersink holes of wear-resistant liners, short life of drill bits, and increased processing costs, so as to achieve reasonable design of manufacturing steps and reduce Processing cost, effect of ensuring installation size
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[0029] The counterbore processing method of the wear-resistant liner of the present invention comprises the following steps:
[0030] a. Lofting and blanking
[0031] Lofting is carried out during the blanking stage to ensure the expanded size of the parts;
[0032] b. Hole opening and pressing
[0033] Taking the maximum diameter of the countersunk part as 40mm as an example, open a round hole with a diameter of 50mm at the position of the countersunk hole required by the drawing, and then press the wear-resistant plate to make it reach the required arc;
[0034] c. Machining countersunk hole parts, including the following steps:
[0035] (1) Round steel blanking, the round steel blanking with an outer diameter of 48mm is selected as the blank of the countersunk hole;
[0036] (2) Drill the center hole and drill the center hole on the blank;
[0037] (3) Drill the countersink, and then drill the countersink on the blank with the center hole drilled;
[0038] (4) Mill the...
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