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Coating for stainless steel highlight high-speed milling and preparation method thereof

A high-speed milling and stainless steel technology, applied in coating, metal material coating process, ion implantation plating, etc., can solve the problems of low ionization rate, difficult to meet processing requirements, and poor processing life, so as to reduce friction and improve Improvement of machining efficiency and wear resistance

Inactive Publication Date: 2021-07-13
苏州吉恒纳米科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in terms of PVD technology, the coating of magnetron sputtering is smooth, and the coating of arc arc is relatively rough. However, it is difficult for magnetron sputtering to meet the processing requirements in terms of difficult-to-process materials, because the ionization rate of magnetron sputtering is too high after all. Low, even though the current high-energy magnetron sputtering can greatly improve the ionization rate, it is still far behind the arc technology. Although the finish is better, the processing life is far inferior to the arc technology in terms of difficult-to-machine materials. Prepared coating

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  • Coating for stainless steel highlight high-speed milling and preparation method thereof

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Effect test

Embodiment 1

[0036] The preparation method of the coating for stainless steel high-speed milling includes the following process steps:

[0037] Under the condition of not damaging the edge of the tool, the tool is subjected to fluid sandblasting or polishing, and the processed tool is cleaned by a fully automatic cleaning line;

[0038] Fix the cleaned tool on the turret according to the requirements, put it into the coating equipment, put the AlCr and AlCrWSi two groups of target materials into the equipment, and adjust the rotation speed of the large plate;

[0039] Vacuum the vacuum chamber of the coating equipment to a vacuum degree of 5×10 -5 mbar, turn on the heater at the same time to raise the temperature to 400-500°C; feed high-purity Ar gas, and maintain the air pressure at 1×10 -3 mbar, using the filament of the ion chamber and the auxiliary anode to ionize Ar gas to produce high concentration Ar + Negative bias voltage 100-300V is applied to ions, tool and turret, through bia...

Embodiment 2

[0046] The preparation method of the coating for stainless steel high-speed milling includes the following process steps:

[0047] Under the condition of not damaging the edge of the tool, the tool is subjected to fluid sandblasting or polishing, and the processed tool is cleaned by a fully automatic cleaning line;

[0048] Fix the cleaned tool on the turret according to the requirements, put it into the coating equipment, put the AlCr and AlCrWSi two groups of target materials into the equipment, and adjust the rotation speed of the large plate;

[0049] Vacuum the vacuum chamber of the coating equipment to a vacuum degree of 5×10 -5 mbar, at the same time, turn on the heater to raise the temperature to 400-500°C; feed high-purity Ar gas, and maintain the air pressure at 5×10 -3 mbar, using the filament of the ion chamber and the auxiliary anode to ionize Ar gas to produce high concentration Ar + Negative bias voltage 100-300V is applied to ions, tool and turret, through bi...

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Abstract

The invention relates to a coating for stainless steel highlight high-speed milling. The coating comprises an AlCrN bonding layer, an AlCrN climbing layer, a multi-layer composite functional layer and a high-stress lubricating wear-resistant surface layer which are bonded on a substrate from bottom to top, wherein the multi-layer composite functional layer is formed by alternately and mutually compounding AlCrN / AlCrWSi high-hardness nano mixing layers and AlCrN destressing temperature-resistant adjusting layers. The coating has the characteristics of high temperature resistance, wear resistance and highlight. The invention further relates to a preparation method of the coating. A PVD electric arc technology and a combined magnetic field mechanism are utilized, so that the target ionization rate is further increased, and generation of liquid drops is reduced, and meanwhile, the coating structure of a core function layer is additionally arranged, such that the smoothness is improved while high temperature resistance and wear resistance in the cutter machining process are guaranteed; the core functional layer adopts a structure formed by repeatedly, alternately and circularly compounding the AlCrN / AlCrWSiN high-hardness nano mixing layers and the AlCrN destressing temperature-resistant adjusting layers, so that the effects of wear resistance, destressing and impact resistance are achieved; and the coating is suitable for high-speed machining and reduces friction, and compared with the prior art which needs two procedures to achieve highlight, the preparation method can achieve highlight in one step, and improves the machining efficiency.

Description

technical field [0001] The invention relates to the technical field of tool coating preparation, in particular to a coating for high-gloss stainless steel high-speed milling and a preparation method thereof. Background technique [0002] Stainless steel not only has good corrosion resistance, but also has good appearance characteristics, and the application range of stainless steel is more and more extensive. Stainless steel will not corrode, pit, rust or wear, stainless steel is a high strength, high toughness and high crack resistance building material, and it is sustainable, renewable and reusable. [0003] In recent years, stainless steel has become more and more widely used in civilian industries, especially in the 3C industry, and each company has launched flagship phones. The big difference between flagship phones is that stainless steel is used in the frame and other places. However, stainless steel has high tensile strength and good toughness, so it is much more di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/32C23C14/54C23C14/02C23C14/06C23C14/00
CPCC23C14/325C23C14/54C23C14/022C23C14/0641C23C14/0042
Inventor 金章斌贺胜何江海邓晓良
Owner 苏州吉恒纳米科技有限公司