A laser additive manufacturing method for tin-based babbitt alloy components

A technology of tin-based Babbitt alloy and manufacturing method, which is applied in the processing field of metal components, can solve the problems of low forming precision, complex process, and coarse structure, and achieve the effect of no increase in structural complexity and short process flow

Active Publication Date: 2020-01-07
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the problems of coarse structure and component segregation, low forming precision, complex process, high energy consumption, and difficulty in manufacturing complex structures of babbitt alloy components manufactured by traditional casting methods, and proposes a laser additive for tin-based babbitt alloy components Manufacturing method

Method used

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  • A laser additive manufacturing method for tin-based babbitt alloy components

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1. Use the SolidWorks 3D drawing software to design a wall, and use the slicing software to slice it. The thickness of the sliced ​​layer is 0.1mm.

[0026] 2. Use a tin-plated steel plate as the substrate, the thickness of the tin-plated layer is 0.1mm, and place it on an electric heating plate with a temperature of 100 °C.

[0027] 3. The composition of tin-based Babbitt alloy powder is 15% antimony, 4% copper, and the balance of tin, and the particle size is 150 mesh. Lay the tin-based Babbitt alloy powder on the surface of the substrate in step 2 with a thickness of 0.1mm.

[0028] 4. Use the first two-dimensional slicing pattern in step 1 to control the light output and running path of the laser beam, and form the first laser cladding layer in the selected area under the heating effect of the 45W laser beam.

[0029] 5. Lower the substrate by 0.1 mm, spread powder according to step 3, and use the second two-dimensional slice pattern in step 1 to control the laser ...

Embodiment 2

[0032] 1. Use the SolidWorks 3D drawing software to design a wall, and use the slicing software to slice it. The thickness of the sliced ​​layer is 0.02mm.

[0033] 2. Use tin-plated steel plate on the surface as the substrate, the thickness of the tin-plated layer is 0.02mm, and place it on an electric heating plate with a temperature of 50°C.

[0034] 3. The composition of tin-based Babbitt alloy powder is 6% antimony, 6% copper, the balance of tin, and the particle size is 300 mesh. Lay the tin-based Babbitt alloy powder on the surface of the substrate in step 2 with a thickness of 0.02 mm.

[0035] 4. Use the first two-dimensional slicing pattern in step 1 to control the light output and running path of the laser beam, and form the first laser cladding layer in the selected area under the heating effect of the 20W laser beam.

[0036] 5. Lower the substrate by 0.02mm, spread powder according to step 3, use the second two-dimensional slice pattern in step 1 to control the ...

Embodiment 3

[0039] 1. Use the SolidWorks 3D drawing software to design a wall, and use the slicing software to slice. The thickness of the slicing layer is 0.2mm.

[0040] 2. Use a tin-plated steel plate as the substrate, the thickness of the tin-plated layer is 0.2mm, and place it on an electric heating plate with a temperature of 150 °C.

[0041] 3. The composition of tin-based Babbitt alloy powder is 3% antimony, 2% copper, and the balance of tin, and the particle size is 80 mesh. Lay the tin-based Babbitt alloy powder on the surface of the substrate in step 2 with a thickness of 0.2 mm.

[0042] 4. Use the first two-dimensional slicing pattern in step 1 to control the light output and running path of the laser beam, and form the first laser cladding layer in the selected area under the heating action of the 100W laser beam.

[0043] 5. Lower the substrate by 0.2mm, spread powder according to step 3, and use the second two-dimensional slice pattern in step 1 to control the laser beam ...

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Abstract

A laser additive manufacturing method for a tin-based babbitt alloy component, and the invention belongs to the related field of additive manufacturing. The invention solves the problems of segregation, low forming precision, complicated process, high energy consumption and difficulty in forming products with complicated shapes when the casting method is used to manufacture babbitt alloy products. The invention adopts selective laser melting to prepare babbitt alloy. The babbitt alloy obtained by selective laser melting not only has compact structure, uniform composition and precise size, but also can produce products with complex shapes. High power laser, which promotes good forming of babbitt alloy. The process flow is simple, the energy consumption is low, and products of any shape can be formed, which fills the gap in the additive manufacturing of tin-based babbitt alloy components.

Description

technical field [0001] The invention relates to a processing method of a metal component, which belongs to the related field of additive manufacturing, in particular to a laser additive manufacturing method of a tin-based babbitt alloy component. Background technique [0002] Tin-based Babbitt alloy is a wear-reducing and wear-resistant metal material, and its microstructure is characterized by uniform distribution of hard phase particles on the soft phase matrix. This kind of microstructure makes the alloy have very good embedding, compliance and anti-seizing properties, and the soft matrix is ​​concave in favor of bearing, so that a small gap is formed between the sliding surfaces, which becomes an oil storage space and a lubricating oil channel, which is beneficial Reduce friction. Tin-based Babbitt alloys are widely used as bearing bushes, bearings, bushings, and bushing materials for ships, automobiles, and large-scale mechanical spindles. [0003] The traditional man...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/105B33Y10/00C22C13/02C22C13/00
CPCC22C13/00C22C13/02B33Y10/00B22F10/00B22F10/36B22F10/25B22F12/17Y02P10/25
Inventor 赵兴科海旭升赖瑞
Owner UNIV OF SCI & TECH BEIJING
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