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Laser cladding method for surface of lead screw

A laser cladding and lead screw technology, applied in laser welding equipment, manufacturing tools, welding equipment, etc., can solve the problems of low bearing capacity of ball screws, increased maintenance costs, and high processing costs

Inactive Publication Date: 2014-01-08
JIANGSU YIYU ENERGY SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantages of the ball screw, such as low load capacity, high processing cost and high operating noise, greatly increase the maintenance cost.

Method used

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  • Laser cladding method for surface of lead screw

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for laser cladding on the surface of a lead screw, comprising the following steps:

[0023] 1) The screw mentioned above is a ball screw;

[0024] 2) Perform acetone degreasing and impurity treatment on the surface of the screw at room temperature;

[0025] 3) Use CNC machine tools as the workbench;

[0026] 4) Prefabricated powder: The selected nickel-based ceramic alloy powder formula contains 14% titanium carbide, 0.3% carbon, 6% calcium fluoride, 5% silicon nitride, 4% boron, 3% molybdenum, and 5% iron by weight percentage , 0.8% manganese, the balance of nickel and 3% of indium oxide (In2O3) and rare earth (CeO2).

[0027] 5) Clamp the lead screw on the workbench and rotate it accordingly. The speed of the workbench is 250r / min. The diameter of the high-energy laser beam (that is, the spot) is 3mm. The overlap rate is 15%. Through the fiber laser generator and The robot system moves axially synchronously to keep the distanc...

Embodiment 2

[0034] A method for laser cladding on the surface of a lead screw, comprising the following steps:

[0035] 1) The screw mentioned above is a ball screw;

[0036] 2) Perform acetone degreasing and impurity treatment on the surface of the screw at room temperature;

[0037] 3) Use CNC machine tools as the workbench;

[0038] 4) Prefabricated powder: The selected nickel-based ceramic alloy powder formula contains 14% titanium carbide, 0.3% carbon, 6% calcium fluoride, 5% silicon nitride, 4% boron, 3% molybdenum, and 5% iron by weight percentage , 0.8% manganese, the balance of nickel and 3% of indium oxide (In2O3) and rare earth (CeO2).

[0039] 5) Clamp the lead screw on the workbench and rotate it accordingly. The speed of the workbench is 250r / min. The diameter of the high-energy laser beam (that is, the spot) is 4mm. The overlap rate is 20%. Through the fiber laser generator and The robot system moves axially synchronously to keep the distanc...

Embodiment 3

[0046] A method for laser cladding on the surface of a lead screw, comprising the following steps:

[0047] 1) The screw mentioned above is a ball screw;

[0048] 2) Perform acetone degreasing and impurity treatment on the surface of the screw at room temperature;

[0049]3) Use CNC machine tools as the workbench;

[0050] 4) Prefabricated powder: The selected nickel-based ceramic alloy powder formula contains 14% titanium carbide, 0.3% carbon, 6% calcium fluoride, 5% silicon nitride, 4% boron, 3% molybdenum, and 5% iron by weight percentage , 0.8% manganese, the balance of nickel and 3% of indium oxide (In2O3) and rare earth (CeO2).

[0051] 5) Clamp the lead screw on the workbench and rotate accordingly. The speed of the workbench is 350r / min. The diameter of the high-energy laser beam (that is, the spot) is 5mm. The overlap rate is 25%. Through the fiber laser generator and The robot system moves axially synchronously to keep the distance from the laser beam...

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Abstract

The invention discloses a laser cladding method for the surface of a lead screw. The method comprises the following steps: 1) cladding blended nickel-based ceramal powder on the surface of a lead screw in a synchronous powder feeding manner, allowing the powder and the surface of the lead screw to fuse at the same time through laser beam scanning and subjecting a mixed liquid alloy to rapid solidification through air cooling at room temperature so as to form an alloy cladding layer; and 2) allowing the surface of the cladding layer to meet requirements on assembling and working of the lead screw by using a machining manner. The method has the following advantages: 1) the surface of the lead screw has improved strength, wear resistance, high temperature resistance and corrosion resistance after cladding; 2) the cladding layer has small deformation, a compact structure, few microdefects, high bonding strength and a low rate of dilution to the surface of the lead screw; 3) the size and the position of the cladding layer can be accurately controlled, and components of the cladding layer can be conveniently adjusted according to demands of working conditions; and 4) the service life of the lead screw is prolonged, the integral performance of equipment is improved, and maintenance cost is saved.

Description

technical field [0001] The invention belongs to the technical field of laser cladding, in particular to a method for laser cladding on the surface of a lead screw. 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. Laser cladding can greatly change the metal properties of the key...

Claims

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Application Information

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IPC IPC(8): C23C24/10B23K26/34C22C32/00
Inventor 钱志强季永清
Owner JIANGSU YIYU ENERGY SCI & TECH DEV
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