Processing method of complicated curve surface of fragile material

A technology of complex curved surfaces and processing methods, applied in stone processing equipment, fine working devices, working accessories, etc., can solve the problems of optical function failure, low processing efficiency, easy embedding of abrasives, etc., to improve the quality of the processed surface and reduce the cutting tool Abrasion, Difficulty Reduction Effect

Active Publication Date: 2017-09-01
TIANJIN UNIV
View PDF8 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the grinding method uses tiny abrasive particles to repeatedly grind the optical device into shape, the processing efficiency is low, and for soft and brittle materials, abrasives are easy to embed into the interior to form impurities and defects, which in turn cause the failure of optical functions

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Processing method of complicated curve surface of fragile material
  • Processing method of complicated curve surface of fragile material
  • Processing method of complicated curve surface of fragile material

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0025] 1. Build a processing system combining milling and flying tools;

[0026] 2. Select the appropriate radius of rotation of the flying tool spindle and the appropriate milling feed direction to avoid the corresponding radius of curvature being smaller than the radius of rotation of the flying tool, that is, select the appropriate milling spindle speed, feed rate and radius of rotation of the flying tool installation to avoid flying The radius of gyration of the tool is greater than the maximum radius of curvature on any one of its curved surfaces along the linear motion direction of the milling axis.

[0027] 3. According to the characteristics of the processing process and the cutting performance of the material, design suitable cutting parameters and tool geometry parameters; according to the embodiment, select the flying knife spindle speed to be 4000rpm, the radius of gyration to be about 30mm, and the nose radius to be 0.5mm. The directional feed is F=2mm / min, and wh...

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

No PUM Login to view more

Abstract

The invention relates to a processing method of a complicated curve surface of a fragile material. The processing method comprises the steps that according to the shape of a surface to be processed, an appropriate fly cutter spindle turning radius and an appropriate milling feeding direction, and a fly cuter turning spindle can be selected to be parallel to the milling feeding direction or perpendicular to the milling feeding direction; according to the processing process characteristics and the cutting characteristics of a material, appropriate cutting parameters and appropriate cutting tool geometric parameters are design so as to guarantee that the removal amount of the material in single-pass cutting is controlled within a plastic removal rang; based on the cutting parameters and the cutting tool geometric parameters, a processing path of fly cutter cutting and milling feeding is generated, and path compensation is conducted before processing, and after compensation, the contour of a cutting tool traverses the path to form a processed surface; a workpiece to be processed is mounted on a spindle of an ultra-precision machine tool, and a fly cutter is perpendicularly mounted on an ultra-precision milling shaft; and the workpiece is processed.

Description

technical field [0001] It belongs to the field of complex curved surface manufacturing and ultra-precision machining of brittle materials. Background technique [0002] Optical complex surfaces are widely used in new energy, aerospace, lighting imaging, bioengineering and other interdisciplinary fields. Compared with the traditional optical surface, the optical complex curved surface has superior performance, its curved surface has a large degree of freedom, a better viewing angle, fewer components required for the system, lighter, easier to assemble, and a higher modulation transfer function. As the core component of many optical devices, adding complex curved surfaces can reduce the volume and weight of the system while improving the imaging quality of the system. Semiconductor materials, optical crystals and other brittle materials have excellent ultraviolet or infrared transmittance, high damage threshold, high refractive index and other characteristics, and the demand ...

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
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B28D5/00B28D7/00
CPCB28D5/0058B28D7/005
Inventor 房丰洲张效栋李泽骁朱琳琳
Owner TIANJIN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap