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Cobalt-based metal ceramic alloy powder special for laser cladding of milling cutter

A laser cladding and ceramic alloy technology, applied in the field of alloy powder, can solve the problem of high cost, achieve the effect of improving hardness and strength, improving wear resistance and heat resistance, and reducing cost

Inactive Publication Date: 2014-01-29
张家港和昊管理咨询有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the overall material of the milling cutter is made of cemented carbide with high mechanical performance, and the cost is very high. If the metal alloy powder specially used for laser cladding of milling cutters can be provided, then laser cladding can be used to provide milling cutter machinery performance while reducing the cost of milling cutters

Method used

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  • Cobalt-based metal ceramic alloy powder special for laser cladding of milling cutter

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Effect test

Embodiment 1

[0020] Fully mechanically mix 130g tungsten carbide, 1g carbon, 20g calcium fluoride, 40g silicon nitride, 40g boron, 13g vanadium, 11g silicon, 60g iron, 110g molybdenum and 575g cobalt to obtain 100-200 mesh cobalt-based cermet alloy powder.

Embodiment 2

[0022] Fully mechanically mix 150g tungsten carbide, 4g carbon, 60g calcium fluoride, 60g silicon nitride, 60g boron, 16g vanadium, 14g silicon, 80g iron, 140g molybdenum and 416g cobalt to obtain 100-200 mesh cobalt-based cermet alloy powder.

Embodiment 3

[0024] Fully mechanically mix 140g tungsten carbide, 3g carbon, 40g calcium fluoride, 50g silicon nitride, 50g boron, 15g vanadium, 12g silicon, 70g iron, 130g molybdenum and 490g cobalt to obtain 100-200 mesh cobalt-based cermet alloy powder.

[0025] The mixed metal alloy powder in this embodiment 3 is evenly ejected from the powder injection hole of the laser head, the powder feeding direction of the metal ceramic alloy powder is coaxial with the laser beam, the laser wavelength of the laser is 1.06 μm, and the output power is 4000W. The running speed is 2m / min, and the single track width is 2mm. The milling cutter obtained by laser cladding is mechanically inspected to obtain the following data: (the distance in the table below is based on the bottom surface of the cladding layer as the base plane, positive above the base plane, and negative below the base plane)

[0026]

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Abstract

The invention discloses cobalt-based metal ceramic alloy powder special for laser cladding of a milling cutter. The powder comprises, by weight, 13-15% of tungsten carbide, 0.1-0.4% of carbon, 2-6% of calcium fluoride, 4-6% of silicon nitride, 4-6% of boron, 1.3-1.6% of vanadium, 1.1-1.4% of silicon, 6-8% of Fe, 11-14% of molybdenum, and the balance cobalt. The cobalt-based metal ceramic alloy powder is specially used for laser cladding of the milling cutter, and capable of improving the compactness of the metal structure of the milling cutter, reducing the defects of air holes, cracks and shrinkage cavities of a cladding layer, improving the wear resistance, rigidity heat resistance and strength of the milling cutter, and reducing cost.

Description

technical field [0001] The invention relates to an alloy powder, in particular to a cobalt-based cermet alloy powder specially used for laser cladding of milling cutters. Background technique [0002] Laser has the characteristics of high brightness, high directionality, high monochromaticity and high coherence, and is now being used in more and more fields. Laser cladding is one of the surface treatment technologies. In a nutshell, the principle of laser cladding is to use high-energy laser beams to irradiate the surface of metal materials, the surface of the substrate is melted rapidly, the liquid metal forms a small-scale molten pool, and new powder materials are filled at the same time. , the original metal material is mixed with the added powder to form a new layer of liquid metal. After the laser beam passes through, the liquid metal layer is rapidly cooled to form a solid cladding layer on the metal surface. A milling cutter is a rotating tool with one or more teeth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00C23C24/10
Inventor 柳岸敏张翀昊朱小虎王小红肖彩梅邵国峰
Owner 张家港和昊管理咨询有限公司
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