Composite Strengthening Method for High Performance Surface of Shaft Parts

Abstract

The invention discloses a high-performance surface composite strengthening method for shaft parts, which belongs to the field of metal material surface processing. The surface composite strengthening method includes: S1. Carrying out radial vibration turning on shaft parts to form specific and regularly distributed micro / nano-scale micro-geometric shapes on the processed surface; S2. Surface coating; S3. Using ultrasonic rolling The press working process mechanically strengthens the coated surface. Compared with the prior art, the high-performance surface composite strengthening method for shaft parts of the present invention can greatly improve the bonding strength of the bonding interface between the base material and the coating layer, and at the same time improve the hardness, fatigue strength, wear resistance and corrosion resistance of the final formed surface It is a permanent shaft part and has good promotion and application value.

Description

technical field

[0001] The invention relates to the field of surface processing of metal materials, and specifically provides a high-performance surface composite strengthening method for shaft parts. Background technique

[0002] In order to improve the tribological properties of shaft parts, improve their anti-corrosion performance, or improve their construction process, surface treatment of shaft parts has become a routine treatment method, and surface coating is one of the most common methods. Coating methods such as electroplating, electroless plating, laser cladding, ion-assisted coating, cold spraying, thermal spraying, chemical vapor spraying, physical vapor spraying, physical vapor deposition, etc.

[0003] The electroless plating technology is a plating method that reduces the metal ions in the plating solution to metal and deposits them on the surface of the part with the help of a suitable reducing agent without an external current. Compared with electroplating,...

Examples

experiment example

[0075] Through the scratch test, the interface bonding strength of the shaft parts finished products obtained in Example, Comparative Example 1, Comparative Example 2, Comparative Example 3, and Comparative Example 4 is measured, and a comparison diagram of interface bonding strength can be obtained (see Figure 4 ). It can be seen that the interfacial bonding strength of the composite surface shaft parts obtained by the strengthening method of the embodiment is obviously better than that of the comparative examples, and has good popularization and application value.

technical field

[0001] The invention relates to the field of surface processing of metal materials, and specifically provides a high-performance surface composite strengthening method for shaft parts. Background technique

[0002] In order to improve the tribological properties of shaft parts, improve their anti-corrosion performance, or improve their construction process, surface treatment of shaft parts has become a routine treatment method, and surface coating is one of the most common methods. Coating methods such as electroplating, electroless plating, laser cladding, ion-assisted coating, cold spraying, thermal spraying, chemical vapor spraying, physical vapor spraying, physical vapor deposition, etc.

[0003] The electroless plating technology is a plating method that reduces the metal ions in the plating solution to metal and deposits them on the surface of the part with the help of a suitable reducing agent without an external current. Compared with electroplating,...

Examples

experiment example

[0075] Through the scratch test, the interface bonding strength of the shaft parts finished products obtained in Example, Comparative Example 1, Comparative Example 2, Comparative Example 3, and Comparative Example 4 is measured, and a comparison diagram of interface bonding strength can be obtained (see Figure 4 ). It can be seen that the interfacial bonding strength of the composite surface shaft parts obtained by the strengthening method of the embodiment is obviously better than that of the comparative examples, and has good popularization and application value.

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