AlZrTiN composite multi-gradient multi-coating turning blade and preparation method thereof
A multi-coating and multi-gradient technology, which is applied in turning equipment, coatings, and cutting tools for lathes, can solve the problems of large performance differences between coatings and tool substrates, large residual stresses in coatings, and low interface bonding strength. problems, achieve high bonding strength, reduce internal stress, reduce cutting force and cutting temperature
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Embodiment 1
[0025] The preparation method of AlZrTiN composite multi-gradient multi-coating turning blade: firstly clean the blade substrate, and then put the blade substrate and the required target into the vacuum chamber of the coating machine for coating. The coating process steps are as follows:
[0026] (1), Ti connection layer coating stage: After the vacuum chamber is evacuated, Ar gas is introduced to make the partial pressure of Ar gas in the vacuum chamber 0.4Pa, the bias voltage at both ends of the blade substrate is adjusted to 100V, and then the Ti target current is turned on and Keep it at 15A, and the coating time is 3.5min;
[0027] (2), TiN gradient transition layer coating stage: pass N into the vacuum chamber 2 , and adjust the amount of Ar gas to make N 2 The partial pressure ratio with Ar gas is 1.5:1, the air pressure in the vacuum chamber is 0.4Pa, the bias voltage at both ends of the blade substrate is adjusted to 100V, then the Ti target current is turned on and ...
Embodiment 2
[0032] The preparation method of AlZrTiN composite multi-gradient multi-coating turning blade: firstly clean the blade substrate, and then put the blade substrate and the required target into the vacuum chamber of the coating machine for coating. The coating process steps are as follows:
[0033] (1), Ti connection layer coating stage: After the vacuum chamber is evacuated, Ar gas is introduced to make the partial pressure of Ar gas in the vacuum chamber 0.6Pa, the bias voltage at both ends of the blade substrate is adjusted to 250V, and then the Ti target current is turned on and Keep it at 15A, and the coating time is 4.5min;
[0034] (2), TiN gradient transition layer coating stage: pass N into the vacuum chamber 2 , and adjust the amount of Ar gas to make N 2 The partial pressure ratio with Ar gas is 1.5:1, the air pressure in the vacuum chamber is 0.6Pa, the bias voltage at both ends of the blade substrate is adjusted to 100V, then the Ti target current is turned on and ...
Embodiment 3
[0039] The preparation method of AlZrTiN composite multi-gradient multi-coating turning blade: firstly clean the blade substrate, and then put the blade substrate and the required target into the vacuum chamber of the coating machine for coating. The coating process steps are as follows:
[0040] (1), Ti connection layer coating stage: After the vacuum chamber is evacuated, Ar gas is introduced to make the partial pressure of Ar gas in the vacuum chamber 0.5Pa, the bias voltage at both ends of the blade substrate is adjusted to 200V, and then the Ti target current is turned on and Keep it at 15A, and the coating time is 4min;
[0041] (2), TiN gradient transition layer coating stage: pass N into the vacuum chamber 2 , and adjust the amount of Ar gas to make N 2 The partial pressure ratio with Ar gas is 1.5:1, the air pressure in the vacuum chamber is 0.5Pa, the bias voltage at both ends of the blade substrate is adjusted to 100V, then the Ti target current is turned on and ke...
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