CN105666046A - Machining method for steering knuckle - Google Patents

Machining method for steering knuckle Download PDF

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Publication number
CN105666046A
CN105666046A CN201410672057.6A CN201410672057A CN105666046A CN 105666046 A CN105666046 A CN 105666046A CN 201410672057 A CN201410672057 A CN 201410672057A CN 105666046 A CN105666046 A CN 105666046A
Authority
CN
China
Prior art keywords
knuckle
machining
carries
steering knuckle
forging
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410672057.6A
Other languages
Chinese (zh)
Inventor
钟传梅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Guikun Machinery Co Ltd
Original Assignee
Chongqing Guikun Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chongqing Guikun Machinery Co Ltd filed Critical Chongqing Guikun Machinery Co Ltd
Priority to CN201410672057.6A priority Critical patent/CN105666046A/en
Publication of CN105666046A publication Critical patent/CN105666046A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a machining method for a steering knuckle. The machining method for the steering knuckle is characterized in that the steering knuckle is made from 20Mn2, and the technological process includes the steps of thermal forming, cold extrusion, straightening, quenching, tempering, straightening, shot blasting and machining. According to the machining method for the steering knuckle, technological parameters in all stages are controlled strictly, the number of working procedures is greatly reduced, the technology is simple, operation is convenient, and energy consumption is low.

Description

A kind of knuckle processing method
Technical field
The invention belongs to mechanical processing technique field, specifically a kind of knuckle processing method.
Background technology
At present, many employing conventional steering joint frame modes, processing technique also adopts existing mature technology mostly, and existing knuckle generally adopts modifier treatment rear surface hard chrome plating to process, and after frequent movement, chromium coating is easy to wear, de-chromium.
Summary of the invention
In view of the deficiency that prior art exists, the invention aims to overcome the defect of prior art, it is proposed to a kind of better knuckle processing method of product technology performance, it is possible to improve rigidity, to reach to save energy and reduce the cost, improve performance, reduce production cost.
The technical scheme realizing the object of the invention is as follows:
A kind of knuckle processing method, it is characterised in that comprise the following steps:
(1) the material selection 40Cr forging material of knuckle;
(2) knuckle forging material carries out rough turn plucking base, stays semifinishing surplus to carry out modifier treatment 260~300HB;
(3) knuckle is refined in the size tolerance requirements of finished product requirement;
(4) knuckle carries out mid frequency induction hardening, hardness 46~50HRC after quenching; Frequency 4500-5500HZ, 5-8 hour heat time heating time, 3-5 hour cool time;
(5) knuckle grinding;
(6) knuckle outer surface carries out hard chrome plating process, and thickness of coating is 0.05-0.08mm.
A kind of knuckle processing method of the present invention, strictly each stage process parameter is controlled, operation substantially reduces, technique is simple, easy to operate, energy loss is low, material source is wide and cheap, easily realize knuckle and used mechanization and the integration of whole processed process by blank to entrucking, face mid frequency induction hardening 46~50HRC process, the plunger surface hardness processed through process above is high, wearability is good, it is beneficial to the stability improving product, it is beneficial to raising knuckle service life, especially the interior tissue of knuckle and performance coordinate and can realize desirable combination, the bending fatigue strength of knuckle, anti-contact fatigue and wear-resistant ability all increase substantially.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described, and its operating procedure is as follows:
A kind of knuckle processing method, it is characterised in that comprise the following steps:
(1) the material selection 40Cr forging material of knuckle;
(2) knuckle forging material carries out rough turn plucking base, stays semifinishing surplus to carry out modifier treatment 260~300HB;
(3) knuckle is refined in the size tolerance requirements of finished product requirement;
(4) knuckle carries out mid frequency induction hardening, hardness 46~50HRC after quenching; Frequency 4500-5500HZ, 5-8 hour heat time heating time, 3-5 hour cool time;
(5) knuckle grinding;
(6) knuckle outer surface carries out hard chrome plating process, and thickness of coating is 0.05-0.08mm.
The preferred embodiment of the present invention described in detail above. Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to the design of the present invention without creative work. Therefore, all technical staff in the art, all should at the protection domain being defined in the patent claims under this invention's idea on the basis of existing technology by logic minute analysis, reasoning or the available technical scheme of limited experiment.

Claims (1)

1. a knuckle processing method, it is characterised in that comprise the following steps:
(1) the material selection 40Cr forging material of knuckle;
(2) knuckle forging material carries out rough turn plucking base, stays semifinishing surplus to carry out modifier treatment 260~300HB;
(3) knuckle is refined in the size tolerance requirements of finished product requirement;
(4) knuckle carries out mid frequency induction hardening, hardness 46~50HRC after quenching; Frequency 4500-5500HZ, 5-8 hour heat time heating time, 3-5 hour cool time;
(5) knuckle grinding;
(6) knuckle outer surface carries out hard chrome plating process, and thickness of coating is 0.05-0.08mm.
CN201410672057.6A 2014-11-22 2014-11-22 Machining method for steering knuckle Pending CN105666046A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410672057.6A CN105666046A (en) 2014-11-22 2014-11-22 Machining method for steering knuckle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410672057.6A CN105666046A (en) 2014-11-22 2014-11-22 Machining method for steering knuckle

Publications (1)

Publication Number Publication Date
CN105666046A true CN105666046A (en) 2016-06-15

Family

ID=56958121

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410672057.6A Pending CN105666046A (en) 2014-11-22 2014-11-22 Machining method for steering knuckle

Country Status (1)

Country Link
CN (1) CN105666046A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107963121A (en) * 2017-11-02 2018-04-27 上海嘉仕久企业发展有限公司 A kind of steering knuckle structure of car and its processing technology
CN111571155A (en) * 2020-05-28 2020-08-25 湖北三环锻造有限公司 Machining process and clamp for quenching part steering knuckle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107963121A (en) * 2017-11-02 2018-04-27 上海嘉仕久企业发展有限公司 A kind of steering knuckle structure of car and its processing technology
CN111571155A (en) * 2020-05-28 2020-08-25 湖北三环锻造有限公司 Machining process and clamp for quenching part steering knuckle

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Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20160615