Method of V-shaped welding of solid carbide drill and solid carbide drill thereof

Abstract

The invention discloses a method of V-shaped welding of a solid carbide drill and the solid carbide drill of the method. The V-shaped welding method comprises the following steps of: selecting corresponding hard alloy bar stocks; determining the lengths of a drill blade part and a drill handle part; carrying out centreless grinding to alloy bar stocks of the drill blade part; cutting the drill blade parts and V-shaped welding parts on the alloy bar stocks by a wire cutting machine; milling a stress relief groove; carrying out heat treatment to the drill handle part, wherein the hardness is 50HRC (rockwell hardness C); carrying out pre-heating to the drill blade part; clamping the drill handle part at the bottom of a special welding fixture by the special welding fixture, and carrying out high-frequency heating; and carrying out heat preservation to the welded solid carbide drill. The structure of the solid carbide drill is as follows: a V-shaped welding part, which is a V-shaped groove, is arranged at the drill handle part, the V-shaped angle is 120 degrees, and the top of the V-shaped angle is the stress relief groove. The method of the V-shaped welding of the solid carbide drill has the following advantages that: the material cost of cutting tools is reduced, and the integral performance is improved. The solid carbide drill is widely applied, so that a large quantity of resources can be saved, and great economic and social benefits can be obtained.

Description

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AI Technical Summary

Benefits of technology

This patented technique helps make tools with strong metals like stainless steels or chrome instead of expensive ones such as cementumene while also being able to work on both hardened (hard) metal types without losing their effectiveness over time. By reducing costs compared to traditional methods, it becomes more affordable and accessible worldwide.

Problems solved by technology

The technical problem addressed in this patents relates to finding ways to reduce resource consumption while still producing large-diameter drilled holes with low materials usage rates by utilizing less expensive raw materials like ceramic (C) instead of traditional metal ones used during machining operations.

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