Automobile hub outer ring closed forging technology

A technology of automobile wheel hub and process, applied in the direction of wheels, vehicle parts, transportation and packaging, etc., can solve the problems of low efficiency, waste of raw materials, increased costs, etc., and achieve the effect of improving the qualification rate, reducing production costs, and precise forging technology.

Inactive Publication Date: 2018-01-23
WANXIANGQIANCHAO CO LTD +1
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the traditional forging technology is open die forging. Open die forging is die forging with flash. During the forging process, it can ensure that the metal flows into the hole to fill the cavity, and finally the excess metal flows out from the flash, which can be used durin

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

Example Embodiment

[0025] Example 1

[0026] A closed forging process for the outer ring of an automobile wheel hub includes the following steps:

[0027] a) Blanking: The blank is made by sawing process, and the weight difference between blank and forging is controlled within 0.3% when blanking;

[0028] b) Heating: Use an intermediate frequency heating furnace to heat the billet to 1100°C;

[0029] c) Upsetting: the billet is upset on the upsetting equipment to obtain a drum-shaped blank;

[0030] d) Pre-forging: the drum-shaped blank is made into a pre-forged part through a pre-forging die;

[0031] e) Precision forging: the pre-forged parts are made into forgings through the precision forging die and the hot forging press, and the ejector rod stroke of the hot forging press is 6cm;

[0032] f) Cool down.

Example Embodiment

[0033] Example 2

[0034] A closed forging process for the outer ring of an automobile wheel hub includes the following steps:

[0035] a) Blanking: The blank is made by sawing process, and the weight difference between blank and forging is controlled within 0.3% when blanking;

[0036] b) Heating: Use an intermediate frequency heating furnace to heat the billet to 1400°C;

[0037] c) Upsetting: the billet is upset on the upsetting equipment to obtain a drum-shaped blank;

[0038] d) Pre-forging: the drum-shaped blank is made into a pre-forged part through a pre-forging die;

[0039] e) Precision forging: the pre-forged parts are made into forgings through the precision forging die and the hot forging press, the stroke of the ejector rod of the hot forging press is 8cm;

[0040] f) Cool down.

Example Embodiment

[0041] Example 3

[0042] A closed forging process for the outer ring of an automobile wheel hub includes the following steps:

[0043] a) Blanking: The blank is made by sawing process, and the weight difference between blank and forging is controlled within 0.1% when blanking;

[0044] b) Heating: Use an intermediate frequency heating furnace to heat the billet to 1100°C;

[0045] c) Upsetting: the billet is upset on the upsetting equipment to obtain a drum-shaped blank;

[0046] d) Pre-forging: the drum-shaped blank is made into a pre-forged part through a pre-forging die, and the pre-forging process is performed once;

[0047] e) Precision forging: the pre-forged parts are made into forgings through the precision forging die and the hot forging press, and the ejector rod stroke of the hot forging press is 6cm;

[0048] f) Cooling: first heat the forging processed forging to 900°C and keep it for 30 minutes; then perform continuous forced cooling of the processed forging under the air b...

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 discloses an automobile hub outer ring closed forging technology. The automobile hub outer ring closed forging technology comprises the technological steps of blanking, heating, upsetting, pre-forging, precision forging, cooling and the like; according to blanking, a material sawing technology is adopted, and therefore the accuracy of a blanked blank can be better controlled, and burrs generated after forging can be reduced; and according to the cooling step, the lingering warmth normalizing technology can be adopted, it is guaranteed that forging waste heat is sufficiently used,the energy using high efficiency is improved, it is guaranteed that a metallographic structure of a treated forging piece is fine and evenly distributed, and the good mechanical property is achieved.By means of the automobile hub outer ring closed forging technology, trimming-free forging is achieved, and raw material consumption of the forging piece can be reduced; and the more accurate forgingtechnology is adopted, the product rejection rate is reduced, the product yield is improved, and the production cost of the forging piece is reduced.

Description

technical field [0001] The invention relates to the technical field of metal material processing, in particular to a closed forging process for the outer ring of an automobile wheel hub. Background technique [0002] Forging is a processing method that uses forging machinery to apply pressure to metal blanks to cause plastic deformation to obtain forgings with certain mechanical properties, certain shapes and sizes. It is one of the two major components of forging (forging and stamping). Forging can eliminate defects such as as-cast porosity produced in the metal smelting process and optimize the microstructure. At the same time, due to the preservation of complete metal flow lines, the mechanical properties of forgings are generally better than castings of the same material. [0003] However, the traditional forging technology is open die forging. Open die forging is die forging with flash. During the forging process, it can ensure that the metal flows into the hole to fill...

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
IPC IPC(8): B21K1/40B21J1/04B21J1/06B21J5/08B21J5/02
Inventor 冯雪忠
Owner WANXIANGQIANCHAO CO LTD
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