JPS5924543A - Manufacture of rear axle housing - Google Patents
Manufacture of rear axle housingInfo
- Publication number
- JPS5924543A JPS5924543A JP13397482A JP13397482A JPS5924543A JP S5924543 A JPS5924543 A JP S5924543A JP 13397482 A JP13397482 A JP 13397482A JP 13397482 A JP13397482 A JP 13397482A JP S5924543 A JPS5924543 A JP S5924543A
- Authority
- JP
- Japan
- Prior art keywords
- rear axle
- axle housing
- blasting
- stress
- fatigue strength
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
- C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、自動車のリヤアクスルハウジングの製造方法
に係り、特にリヤアクスルハウジングの疲労強度の向上
を図った調造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a rear axle housing for an automobile, and more particularly to a method for manufacturing a rear axle housing to improve its fatigue strength.
従来、第１図に示すように、自動車のリヤアクスルハウ
ジング］は、鋳鋼材Ｍにより、鋳造さｔｌてちり、鋳造
後も湯口２等が製品に残る。第１図に示すリャアクスル
ノ・ウジング１は、後１輔用のものであって、湯口２は
切断して取り去り、更に残る鋭角部２ａを第３図に示１
−ように、グラインダ３で研削加工していた。Conventionally, as shown in FIG. 1, the rear axle housing of an automobile is made of a cast steel material M, and the sprue 2 and the like remain on the product even after casting. The rear axle nozzle 1 shown in Fig. 1 is for the rear axle, and the sprue 2 is cut and removed, and the remaining acute angle part 2a is shown in Fig. 3.
-The grinding process was carried out using Grinder 3.
′！！ｆｃ第２図に示すように、後２軸用σ） ＋７−
？アクスルハウジングｌにおいてＩ：ｌ： 、板ばね数
個用の１１＋ｉ１部４及びトルクロンド数個用の腕部５
を溶接補修又は一体成形によシ形成し、ていた。′! ! fc As shown in Figure 2, σ for the rear two axes) +7-
? In the axle housing l, I: l:, 11+i1 part 4 for several leaf springs and arm part 5 for several torque ronds.
The parts were repaired by welding or integrally formed.
し、かじ、従来例のリャアクスルノ・ウジングｌσ〕製
造方法においては、鋭角部２ａの研削加工や溶接補修等
の仕上加工が最終加工となっているため、研削加工跡や
溶接補修部に応力集中が生じ易く、疲労強度が低下する
恐Ｊ１、があった。そして該応力集中により、例えば第
２図のリヤアクスルレノ・ウジング１のように、下側の
引張応力が非常に大きくなって腕部５の付近の表１７１
ｉ１ａから亀裂Ｃが入り、リャアクスルノ・ウジング１
が、非常に過酷な運１１低条件下においては、折損−４
−る恐ｆ１もあり、改良の余地があった。However, in the manufacturing method of the conventional rear axle nozzle lσ], finishing processes such as grinding and welding repair of the acute angle part 2a are the final processing, so stress concentration occurs in the grinding traces and the welded repair part. This was likely to occur, and there was a risk that the fatigue strength would decrease. As a result of this stress concentration, the tensile stress on the lower side becomes extremely large, for example in the rear axle housing 1 shown in FIG.
Crack C appears from i1a, Ryaaxurno Uzing 1
However, under very harsh luck 11 low conditions, the breakage -4
There was also a risk of - f1, so there was room for improvement.
本発明は、上記した従来技術の欠点を除くためにな式ノ
またものであって、その目的とするところｌｚｔ Ｘ鋳
鋼製のリヤアクスルハウジングの製造時にふける型ず才
）一段差、パリ及び仕上加工時における溶）λ補修跡、
グラインダによる研削跡等を１ｙλ躬加］二によって取
り除くことによって、こＴ１．らの部分への応力集中を
防止することてあ’）ｚｉｆｃこ７”Ｌによってリヤア
クスルハウジングの疲労強度蚤二向上さ、けることであ
る。The present invention is an attempt to eliminate the above-mentioned drawbacks of the prior art, and its purpose is to improve the molding skills, cutting edge, and finish processing that are carried out during the manufacture of rear axle housings made of lztX cast steel. λ repair traces,
T1. The purpose of preventing stress concentration on these parts is to improve the fatigue strength of the rear axle housing by adding 7" L.
苅才るに本発明しま、藺（「）１利によりリヤアクスル
ハウジングを銘１〈１シた後、装置補修、鋭角部の（０
１削）、１１１工等の仕に加工を行い、更に前記リヤア
クスルハウジング全体１ｔＣ噴射加工を施すことを特徴
とするものである。According to the present invention, after installing the rear axle housing, we repaired the equipment and fixed the sharp corner (0).
1), 111 machining, etc., and furthermore, the entire rear axle housing is subjected to 1tC injection machining.
以下本発明を図面に示すクイ雄側に基いて訝、明する。The present invention will be explained below with reference to the drawings.
８’Ｉ’ｙ ４図に示すように、リヤアクスルハウジン
グＪｄ１金１．ｉ調相Ｍにより、鋳造さ第１．５ｒ Ｄ
２全２１５３図に示すようにグラインダ３により（υ
［削し、オた済接補咋、鋭角部２ａの研削加工等の仕上
を行い、シ、かる後に第４図に示すように、リヤアクス
ルハウジング］の全体に１Ｊ１７射加工を施すものであ
る。8'I'y 4 As shown in figure, rear axle housing Jd1 gold 1. i phase M, cast 1.5r D
2 Total 2153 As shown in Fig. 2, the grinder 3 (υ
1J17 injection machining is applied to the entire rear axle housing as shown in FIG.
１！ｌｊ（射加工に１、直径４關程度の鋼球から数ミク
ロンの小さい砥粒まで各種の大きさの粒子を敬多く波加
工物に噴射して行う加工法である。被部］二物は粒子に
よって連続的に衝撃を力えら１１．るため、表面の脆い
層、例えば黒皮などｒｊ破壊してｊｌｖり去らｎＸ鋭利
な角を持つ粒子は被加工物の表面を切削する。1! lj (This is a processing method in which particles of various sizes, from steel balls with a diameter of about 4 degrees to small abrasive grains of several microns, are injected onto the workpiece. Since the particles continuously apply impact, the fragile layers on the surface, such as black crust, are destroyed and removed.Particles with sharp edges cut the surface of the workpiece.
一般には、４３“／子のＩＪｉｉ撃力によって、表１ｊ
１１には微小な凹凸ができ、その塑性変形により加工硬
化−Ｐる。波加工物の表面には残留圧縮応力が生じ、リ
ヤアクスルハウジング１に引張応力が働くと、この残留
圧縮応力によって相殺さｉｌｌ、実際の応力は児か（ハ
）のものよシ小畑いものとなる。こノ１−によって、リ
ヤアクスルハウジングＪの神労強１１）−が向上する。In general, Table 1j
11 has minute irregularities, and the plastic deformation causes work hardening. Residual compressive stress is generated on the surface of the corrugated product, and when tensile stress is applied to the rear axle housing 1, it is canceled out by this residual compressive stress, and the actual stress is different from that in (c). . This 1- improves the strength of the rear axle housing J11).
寸た鋭角部２ａがすべて丸みを帯びるようになるため、
応力集中が生じなくなり、亀裂の発生もなくなる。Since all the sharp corners 2a become rounded,
Stress concentration will no longer occur and cracks will no longer occur.
噴射加工によるピーニング効果をｌＩＪも多く期待でき
る方法として、ショットピーニングがあるが、こｊ、は
箇ｔａ二〇、 ３〜４酬イゴ１度の鋼球、即ちショット
６を被加工物に噴射するもので、自動Ｊｊのリヤアクス
ルハウジング１に対−４−る噴射加工としては、この方
法が最も適し、ていることが−′１４」明した。なおシ
□ツｌ−６Ｋは銅球のｅｌかに釧金全的径とＪ（いがは
口竹し７〈々るように切１わ１し、鉄板切に噴射して角
を丸めたカットヮイヤンヨノトを用いることもできる。Shot peening is a method that can be expected to have a large peening effect due to injection processing. It was revealed that this method is most suitable for injection processing on the rear axle housing 1 of an automatic JJ. In addition, the sheet L-6K is made by cutting the entire diameter of the copper ball with the overall diameter of the copper ball. You can also use cutawayanyonoto.
ショット６の噴身１速度は、１０〜５０ ｍ／ ｓｅｅ
程度であり、羽根車又は噴射ノズルにより噴射式）
本発明は、上記のように構成窟れ、昨月１１−るもので
あるから、ｆｆ１４Ｊ％４製のリヤアクスルハウジング
の製造時における型ず才１段差、パリ及び仕上加］二時
における溶接袖’ｉ＋、’ｉ跡、グラ・ｆンダにょＺ）
イｌ）１削跡等を噴射加工によって１１ｖり除くことに
よって、とｊ、らの部分への応力集中を防止−４′るこ
とかでき、リヤアクスルハウジングの疲労強度（〔゛向
上塾ぜることができる）；ＪＪ来が缶らノする。The jet speed of shot 6 is 10 to 50 m/see
(Injection type using an impeller or an injection nozzle) The present invention has a structure as described above, and since it was made on November 11, 2013, the mold size at the time of manufacture of the rear axle housing made of FF14J%4 is 1. Steps, paris and finishing additions] Welding sleeve 'i+, 'i mark, gra fnda nyo Z) at 2 o'clock
1) By removing 11v scratches etc. by injection machining, it is possible to prevent stress concentration on these parts, and improve the fatigue strength of the rear axle housing. ); JJ will be able to do it.
第１図、第２図及び第３図は従来例に係り、第１図はｖ
Ｊ造１１後のリャアクスルノ・ウジングσ）正１１１１
図、ｉ：、ｉ’４２図はリヤアクスルノ・ウジングｉＣ
（ｆ’ｃ裂力（入った状態を示す正■；１図、−第３図
は湯１」をグラインダで０１削している状態を示す斜祝
■１、第４１えはΔぐ発明の’ｊ：！： 線側に係るリ
ヤアクスル〕・ウジングσ）製造方法として噴射加工を
行っている状態を示−ｒ正面図である。
１は１月＼′アクスルノ・ウジング、２ａは鍋１角ｇ。
Ｍは但１銅柑、６ｉＩｉｌｊｌ東射加工用のショットで
あ／）。Figures 1, 2, and 3 relate to conventional examples, and Figure 1 shows v
Ryaaxurno Uzing σ) Positive 1111 after J-Building 11
Figure, i:, i'42 Figure shows rear axle nozzle iC
(f'c tearing force (positive ■ showing the state in which it is inserted; Fig. 1, - Fig. 3 is diagonal congratulation showing the state in which hot water 1 is being ground with a grinder) 1, 41st figure is the Δg invention 'j:!: Rear axle related to the line side]・Using σ) This is a front view showing the state in which injection processing is performed as a manufacturing method. 1 is January \' Axle no Uzing, 2a is a pan 1 corner g .M is a shot for 1 copper leaf, 6iIiljl Toshi processing/).
Claims (1)
Ｊ造した後、溶接補修、鋭角部の研削加工等の仕上加工
を行い、更に前記リヤアクスルハウジング全体に噴射加
工を施すことを特徴とするリヤアクスルハウジングの製
造方法。 ２ 前記噴射加工はショットピーニングであることを！
１！Ｊ徴とするｌ［？ ｒｌＲｉ’ｆ求の範囲第１項記
載のリヤアクスルハウジングの製造方法１．[Claims] 1. The rear axle housing is fdJ with a copper phase for ζ1.
A method for manufacturing a rear axle housing, which comprises performing finishing processes such as welding repairs and grinding of acute corners after J-building, and further performing injection processing on the entire rear axle housing. 2. The above injection process is shot peening!
1! L [? rlRi'f Range of Requirements Method for manufacturing a rear axle housing as described in item 1 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13397482A JPS5924543A (en) | 1982-07-31 | 1982-07-31 | Manufacture of rear axle housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13397482A JPS5924543A (en) | 1982-07-31 | 1982-07-31 | Manufacture of rear axle housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5924543A true JPS5924543A (en) | 1984-02-08 |
Family
ID=15117421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13397482A Pending JPS5924543A (en) | 1982-07-31 | 1982-07-31 | Manufacture of rear axle housing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5924543A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0533048A (en) * | 1991-07-26 | 1993-02-09 | Hino Motors Ltd | Method for strengthening front axle beam for automobile |
| JPH0578739A (en) * | 1991-09-19 | 1993-03-30 | Hino Motors Ltd | Method for reinforcing rear accel housing for automobile |
| CN112453238A (en) * | 2020-11-17 | 2021-03-09 | 燕山大学 | Stamping forming method of integral axle housing bridge package |
-
1982
- 1982-07-31 JP JP13397482A patent/JPS5924543A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0533048A (en) * | 1991-07-26 | 1993-02-09 | Hino Motors Ltd | Method for strengthening front axle beam for automobile |
| JPH0578739A (en) * | 1991-09-19 | 1993-03-30 | Hino Motors Ltd | Method for reinforcing rear accel housing for automobile |
| CN112453238A (en) * | 2020-11-17 | 2021-03-09 | 燕山大学 | Stamping forming method of integral axle housing bridge package |
| CN112453238B (en) * | 2020-11-17 | 2023-06-16 | 燕山大学 | Stamping forming method of integral axle housing and axle package |
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