Preparation method of titanium chromium aluminum nitride coated hard alloy drill
A cemented carbide and nitride technology, which is applied in the field of alloy drill bit preparation, can solve problems such as difficulty in ensuring stability and repeatability, large fluctuation range, and low hardness index, and achieve high hardness, long service life, and low internal The effect of stress
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Embodiment 1
[0027] The preparation of titanium chromium aluminum nitride coating YG8 cemented carbide drill bit, its method is,
[0028] 1) Determination of deposition technology, determine multi-arc ion plating as the preparation technology for preparing titanium-chromium-aluminum nitride-coated YG8 cemented carbide drill bits.
[0029] 2) Determination of the target material, using 2 aluminum-chromium alloy targets (the atomic percentage of aluminum and chromium is 55:45) and 2 titanium-chromium alloy targets (the atomic percentage of titanium and chromium is 50:50) as the cathode arc source target In addition, the arc source positions on the wall of the coating chamber are alternately placed at different heights and different orientations, and the purity of the target material reaches 99.95%. During the coating process, four arc sources are always activated at the same time.
[0030] 3) Selection and pre-treatment of cemented carbide drills, choose YG8 cemented carbide drills as the co...
Embodiment 2
[0035] The preparation of titanium chromium aluminum nitride coating YG3 cemented carbide drill bit, its method is,
[0036] 1) Determination of deposition technology, determine multi-arc ion plating as the preparation technology for preparing titanium-chromium-aluminum nitride-coated YG3 cemented carbide drill bits.
[0037] 2) Determination of the target material, using 2 aluminum-chromium alloy targets (the atomic percentage of aluminum and chromium is 55:45) and 2 titanium-chromium alloy targets (the atomic percentage of titanium and chromium is 50:50) as the cathode arc source target In addition, the arc source positions on the wall of the coating chamber are alternately placed at different heights and different orientations, and the purity of the target material reaches 99.95%. During the coating process, four arc sources are always activated at the same time.
[0038] 3) Selection and pre-treatment of cemented carbide drills. Choose YG3 cemented carbide drills as the coat...
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