Method for assisted restraining formation of burr on micro cutting part by femtosecond laser
A femtosecond laser and micro-cutting technology, used in laser welding equipment, manufacturing tools, welding equipment, etc., can solve the problem of not completely suppressing the formation of burrs, and achieve the effect of inhibiting the formation of burrs, inhibiting the formation of burrs, and prolonging the service life.
Inactive Publication Date: 2013-09-25
孙树峰
View PDF8 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Although the above method can effectively reduce the formation of burrs, it cannot completely suppress the formation of burrs.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0023] The invention provides a femtosecond laser-assisted method for suppressing the formation of burrs in micro-cutting parts, comprising the following steps:
[0024] (1) Evenly spray the metal powder of the protective layer on the surface of the micro parts to be processed. Specifically, the material of the protective layer metal powder needs to be determined according to the material of the blank of the part. The melting point of the metal material of the protective layer can be higher or lower than the melting point of the blank of the part, because no matter how high the melting point of the metal material is, the temperature of the laser focus spot can be Melt it, the hardness of the protective layer material is preferably close to or higher than the hardness of the part blank, because the higher the hardness of the protective...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| melting point | aaaaa | aaaaa |
| hardness | aaaaa | aaaaa |
| hardness | aaaaa | aaaaa |
Login to View More
Abstract
The invention provides a method for assisted restraining the formation of burr on a micro cutting part by femtosecond laser. The method comprises the following steps: (1) spraying protecting layer metal powder on the surface of a to-be-machined micro part uniformly; (2) melting and coating the metal powder on the surface of the micro part by femtosecond laser; (3) performing the micro cutting to the micro part; (4) removing adherent metal on the surface of the micro part by femtosecond laser in a melting / gasification manner after the machining of the micro part is completed. According to the invention, all that is needed is to coat and remove the metal through the adoption of the femtosecond laser machining technology, so that the operation is convenient and simple; batch machining for mirco parts can be realized as long as a set of applicable production line is built, so that the part quality is improved, the service life of parts is prolonged, and the cost is greatly reduced in the long run. Therefore, the method is a burr restraining method which is effective, low in cost, and can be used in a wide range.
Description
technical field [0001] The invention belongs to the field of laser-assisted processing, and in particular relates to a femtosecond laser-assisted method for suppressing the formation of burrs in micro-cutting parts. Background technique [0002] Although the burr is small, it is extremely harmful. Miniature parts often reduce the processing quality of parts due to extremely small burrs, which in turn affects the assembly quality of the entire product, and even makes the parts or the entire product scrapped. Therefore, it is one of the important contents of processing technology to develop methods and processes that can effectively reduce or inhibit the formation of burrs in the production process. [0003] In the process of machining micro-mechanical parts, parameters such as feed rate, tool radius, feed per tooth, cutting depth, and radius of the tool edge have an impact on the generation of burrs. In addition, parameters such as the plasticity of the material, the proces...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): B23P9/00B23K26/34
Inventor 孙树峰王萍萍章钦栋
Owner 孙树峰