High-performance surface composite strengthening method for shaft parts

A technology of shaft parts and surface compounding, applied in the field of surface processing of metal materials, can solve the problems of weak film/base bonding force, short service life, high surface roughness, and solve the problem of bonding strength, environmental friendliness, and simple process. Effect

CN110052779AActive Publication Date: 2019-07-26QILU UNIV OF TECH
13 Cites 5 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-07-26

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a high-performance surface composite strengthening method for shaft parts, and belongs to the field of surface machining of metal materials. The surface composite strengtheningmethod comprises the following steps that S1, carrying out radial vibration turning on the shaft parts, and forming a specific regular distributed micron scale / nano scale microcosmic geometrical morphology on the surfaces of the shaft parts; S2, coating the surfaces; and S3, carrying out mechanical reinforcement treatment on the coating surfaces by adopting an ultrasonic rolling processing technology. Compared with the prior art, the high-performance surface composite strengthening method for the shaft parts can greatly improve the bonding strength of a bonding interface of a base material and a coating layer, meanwhile, the hardness, the fatigue strength and the wear-resistant and corrosion-resistant shaft parts of the final forming surfaces are improved, and the method has good popularization and application values.
Need to check novelty before this filing date? Find Prior Art

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 is measured for the shaft parts finished products obtained in Example, Comparative Example 1, Comparative Example 2, Comparative Example 3, and Comparative Example 4, 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 a good value for popularization and application.