Method for drawing and forming parabola revolution body

一种回转体、抛物线的技术，应用在成型工具、金属加工设备、制造工具等方向，能够解决表面涂漆、除漆次数多、零件制造周期长、热处理次数多等问题，达到减少热处理工序、节约加工费用、提高成形效率的效果

Inactive Publication Date: 2009-02-25
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
View PDF0 Cites 41 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the shortcomings of the existing technology that require multiple sets of molds for multi-pass deep drawing and the limitation of the bearing capacity of the top part of the blank, it solves the need for multiple sets of molds in the deep drawing process of the traditional parabolic rotary body, and the number of deep drawing times , many times of heat treatment, many times of surface painting and paint removal, low forming efficiency, and long manufacturing cycle of parts

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] One embodiment of the present invention: the material of the part to be formed is 1Cr18Ni9Ti, and the thickness of the material is 1.2 mm. According to the final shape of the part, a set of dies and a mold with ring-shaped drawing ribs on the blank holder are designed. The mold includes: the lower template 1 , Punch 2, Binder ring 3 with bead, Die 4 with bead, Unloading nozzle 5, Upper template 6, Lifting screw 7, Pin 8, Screw 9, Set screw 11 and Screw 13, during deep drawing, on the punch 2 is provided with a movable soft punch pad 10, and a movable rigid spacer block 12 is placed below the blank holder 13 with drawing ribs. The present invention is realized through the following process: the first deep drawing-annealing heat treatment-the second deep drawing to form a parabolic rotary part.

[0019] The first deep drawing: It is carried out on the PYS400 four-column universal single-acting hydraulic press, and the blank holder force of the part comes from the lower ej...

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 method for drawing shaped parabola revolving body, belonging to the technical field of the plastic forming of material processing engineering. The method comprises the following steps: (1) a set of mould is designed according to the final shape of revolving body parts; (2) the first drawing: when being drawn, a movable soft punch cushion block is arranged on a mould punch; the inner shape of the movable soft punch cushion block is similar to the shape of the punch; a movable rigidity limit cushion block is arranged below a blank holder with a belt drawbead; (3) the annealing heat treatment, the annealing heat treatment is carried out on the parts after the first drawing is carried out on the parts; (4) the second drawing, the same set of module is used; when in drawing, the movable soft punch cushion block and the movable rigidity limit cushion block are removed. In the invention, the movable soft punch cushion block is added on a drawing mould rigidity punch for enlarging the plastic forming of the materials in the first drawing; only one set of drawing module is used on an ordinary hydraulic press, therefore, the parahola revolving body parts which are usually formed with 3-4 sets of moulds by the common drawing processing are successfully formed by twice drawing.

Description

technical field [0001] The invention belongs to the technical field of material processing engineering plastic forming, and relates to a method for forming a parabolic body of revolution by deep drawing. Background technique [0002] The basic forming process of traditional parabolic rotary parts is basically similar to that of spherical parts. However, when the relative height of the parabolic shape part is large (see figure 1 , h / d2>0.5, h—the height of the part, d2—the diameter of the big end of the part), the taper is large (see figure 1 , d1 / d2≤0.2), and the top fillet radius is small (see figure 1 , R≤d2 / 70, R—top fillet radius), the difficulty of forming will increase accordingly. In order to make the blank close to the punch without wrinkling during the deep drawing process, the bulging component and radial tensile stress in the forming process must be increased. Generally, a drawing die equipped with 1 to 2 ring-shaped drawing beads can be used to increase the b...

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): B21D22/26B21D37/10
Inventor 杨踊石晓东刘慧茹韩国平
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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