JPH03126850A - Improvement of aluminum parts strength and scroll member using same - Google Patents
Improvement of aluminum parts strength and scroll member using sameInfo
- Publication number
- JPH03126850A JPH03126850A JP26386289A JP26386289A JPH03126850A JP H03126850 A JPH03126850 A JP H03126850A JP 26386289 A JP26386289 A JP 26386289A JP 26386289 A JP26386289 A JP 26386289A JP H03126850 A JPH03126850 A JP H03126850A
- Authority
- JP
- Japan
- Prior art keywords
- treatment
- scroll member
- scroll
- corner
- base
- 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
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 title claims abstract description 8
- 238000011282 treatment Methods 0.000 claims abstract description 36
- 230000032683 aging Effects 0.000 claims abstract description 11
- 239000006104 solid solution Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 7
- 239000012530 fluid Substances 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract description 4
- 238000009792 diffusion process Methods 0.000 abstract description 2
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 101100432135 Caenorhabditis elegans lap-2 gene Proteins 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 230000035882 stress Effects 0.000 description 8
- 238000005266 casting Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 238000005480 shot peening Methods 0.000 description 3
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000009661 fatigue test Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
Landscapes
- Rotary Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はスクロール型流体機械用アルξニウム製スクロ
ール部材等のアルミニウム部品のｎ１ｔｌｉｉｌ上方法
及びこの方法によるスクロール部材に関す（従来の技術
及びその課題）
スクロール型流体機械に用いられるスクロール部材は第
３図（ａ）、（ｂ）に示すように円盤状の端板■上にう
ず巻状のラップ２を立設してなる。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a method for manufacturing aluminum parts such as an aluminum scroll member for scroll-type fluid machinery, and a scroll member produced by this method. Problem) A scroll member used in a scroll-type fluid machine has a spiral wrap 2 erected on a disc-shaped end plate 2, as shown in FIGS. 3(a) and 3(b).
従来、このスクロール部材はアル珈ニウム合金の重力鋳
造法又は高圧凝固鋳造法によって鋳造されていた。この
スクロール部材の端板ｌとラップ２の根元の角隅部３に
は応力が集中するので、この角隅部３の疲労強度を向上
するため、角隅部３の曲率を大きくしたり、角隅部３に
ショットピーニングやハンマーピーニングにより圧縮残
留応力を付与する等の方策が採られていた。Conventionally, this scroll member has been cast by gravity casting or high pressure solidification casting of an aluminum alloy. Stress is concentrated at the corner 3 at the base of the end plate l and wrap 2 of this scroll member, so in order to improve the fatigue strength of the corner 3, the curvature of the corner 3 may be increased or Measures such as applying compressive residual stress to the corner portion 3 by shot peening or hammer peening have been taken.
しかし、角隅部３の曲率を大きくすると、スクロール型
流体機械のバランスが崩れたり、このスクロールと噛合
する他方のスクロール部材との間に干渉等が生ずるので
、曲率の大きさは自ずと制約される。However, if the curvature of the corner portion 3 is increased, the balance of the scroll-type fluid machine will be lost, and interference will occur between this scroll and the other scroll member that meshes with it, so the size of the curvature is naturally limited. .
また、ショットピーニングやハンマーピーニングはアル
ミニウム合金に対しては疲労弛度の改善効果が小さく、
また、ピーニング効果層の層厚が薄いため切削等の後加
工を要する場合には有効ではない、しかも、スクロール
部材の角隅部３のような狭隘部にショットピーニングや
ハンマーピーニングを施すのは物理的に困５ｍである等
の問題があった。Additionally, shot peening and hammer peening have little effect on improving fatigue sag for aluminum alloys.
In addition, since the peening effect layer is thin, it is not effective when post-processing such as cutting is required, and it is difficult to apply shot peening or hammer peening to narrow areas such as the corners 3 of scroll members. There were problems such as the distance being 5m.
（課題を解決するための手段）
本発明は上記課題を解決するために発明されたものであ
って、第１の発明の要旨とするところは、アルミニウム
部品の所要部位を高密度エネルギー源によりグレージン
グ処理した後、固溶化・時効処理することを特徴とする
アルミニウム部品の強度向上方法にある。(Means for Solving the Problems) The present invention was invented to solve the above problems, and the gist of the first invention is to glaze required parts of aluminum parts with a high-density energy source. The present invention provides a method for improving the strength of aluminum parts, which comprises performing solid solution treatment and aging treatment after treatment.
第２の発明の要旨とするところは、端板上にうず巻状の
ランプを立設してなるスクロール型流体機械的用アルミ
ニウム製スクロール部材において、上記端板と上記ラッ
プの根元との角隅部を高密度エネルギー源によりグレー
ジング処理した後、固溶化・時効処理したことを特徴と
するスクロール部材にある。The gist of the second invention is to provide a scroll-type aluminum scroll member for fluid mechanical use having a spiral ramp erected on an end plate, in which a corner corner between the end plate and the base of the wrap is provided. The scroll member is characterized in that part of the scroll member is subjected to glazing treatment using a high-density energy source, and then subjected to solid solution treatment and aging treatment.
（作用）
第１の発明においては、アルミニウム部品の所要部位を
高密度エネルギー源によりグレージング処理をすること
によって金属組織が局所的に微細化され、その引張強さ
、伸び、衝撃値等の機械的性質が向上するとともに疲労
強度が向上する。グレージング処理の後、固溶化・時効
処理することによって、グレージング処理による引張残
留応力が圧縮残留応力となって、更に疲労強度が向上す
る。(Function) In the first invention, the metal structure is locally refined by glazing the required parts of the aluminum part using a high-density energy source, and mechanical properties such as tensile strength, elongation, impact value, etc. As properties improve, fatigue strength also improves. By performing solution treatment and aging treatment after the glazing treatment, the tensile residual stress caused by the glazing treatment becomes compressive residual stress, and the fatigue strength is further improved.
（実施例）
先ず、鋳物用ＡＬ−３ｉ 合金、即ち、重量％でＳｉ：
８．７％、Ｃｕ：１．７％、Ｍｇ：０．４％、Ｔｉ：０
．０８％、Ｓｂ二０．１％ 残部不可避的不純物を含む
ＡＬからなるアルミ合金を用いて高圧凝固鋳造法により
第３図に示すスクロール部材を鋳造する。(Example) First, the AL-3i alloy for casting, that is, Si in weight%:
8.7%, Cu: 1.7%, Mg: 0.4%, Ti: 0
．． The scroll member shown in FIG. 3 is cast by a high-pressure solidification casting method using an aluminum alloy consisting of AL containing 0.08% Sb2, 0.1% Sb2, and the remainder unavoidable impurities.
次いで、このスクロール部材の端板１とラップ２の根元
の角隅部３に沿ってＣＯ□レーザービームを照射し、こ
の角隅部３を連続的に局所加熱することにより溶解させ
る。Next, a CO□ laser beam is irradiated along the corner portion 3 at the base of the end plate 1 and the wrap 2 of the scroll member, and the corner portion 3 is continuously locally heated and melted.
この際、スクロール部材をポジショナ−を用いて一定速
度で回転させ、レーザー集光レンズの焦点位置と角隅部
３との距離を一定に維持する。ＣＯＬレーザービーム照
射条件は出力；０．３ＫＷ、スポット径；３．Ｏｗ、ビ
ームの傾斜角度：２０度、ビームの移動速度：６１１１
分である。At this time, the scroll member is rotated at a constant speed using a positioner, and the distance between the focal position of the laser condensing lens and the corner portion 3 is maintained constant. COL laser beam irradiation conditions are output: 0.3KW, spot diameter: 3. Ow, beam inclination angle: 20 degrees, beam movement speed: 6111
It's a minute.
局所溶解後、母材側への熱拡散冷却によって急冷するこ
とによりレーザーグレージング処理が完了する。After local melting, the laser glazing process is completed by rapidly cooling the base material by thermal diffusion cooling.
このレーザーグレージング処理による金属Ｍｇ織の微細
化層の層厚は約０．８＋ｕ＋ 、ビンカーズ硬度は母材
より２０ないし３０高い、このレーザーグレージング処
理前後の金属Ｍｇ織が第１図（ａ）、（ｂ）に示され、
処理後の金属Ｍｇ織（ａ）は処理前のそれ（ｂ）に比し
極めて微細化しており、もはやＤＡＳ（ｉ（金属組織の
微細化を測る尺度として用いられ、金属組織の樹枝状晶
の２次アーム間距離（単位μ園で示される）は正確な測
定が不可能な程小さい。The layer thickness of the fine layer of the metal Mg woven fabric by this laser glazing treatment is about 0.8+u+, and the Binkers hardness is 20 to 30 higher than that of the base material. b)
The metal Mg texture (a) after treatment is extremely finer than that before treatment (b), and is no longer used as a scale for measuring the fineness of the metal structure (DAS), which is used as a measure to measure the fineness of the metal structure. The distance between the secondary arms (expressed in units of micrometers) is so small that accurate measurement is impossible.
レザービームの照射後、５４０°Ｃの温度下で４時間の
固溶化処理をし、続いて、１７０℃の温度下で４時間の
人工時効処理を施す。しかる後、角隅部３を１．０から
０．８ｍｍの曲率になるよう仕上加工を施す。After laser beam irradiation, a solid solution treatment is performed at a temperature of 540°C for 4 hours, followed by an artificial aging treatment at a temperature of 170°C for 4 hours. Thereafter, the corner portion 3 is finished to have a curvature of 1.0 to 0.8 mm.
上記各処理終了後の角隅部３から試験片を切り出し、こ
れについてシエンク式曲げ疲労試験を実施した結果が第
２図に示されている。A test piece was cut out from the corner portion 3 after each of the above treatments, and a Sienck bending fatigue test was performed on the test piece. The results are shown in FIG.
この第２図から明らかなように、グレージング処理のみ
を施したもの疲労強度は母材に比し１．２倍程度に向上
する。これは金属組織が局所的に微細化されるとともに
引張残留応力が生ずるためと考えられる。グレージング
処理後、固溶化・時効処理を施すことにより引張残留応
力は圧縮残留応力に変化し、疲労強度は母材に比し、１
．５〜２．０倍程度に向上している。As is clear from FIG. 2, the fatigue strength of the specimen subjected to only glazing treatment is improved by about 1.2 times compared to that of the base material. This is thought to be because the metal structure is locally refined and tensile residual stress is generated. After glazing treatment, tensile residual stress changes to compressive residual stress by solution treatment and aging treatment, and the fatigue strength is 1% compared to the base material.
．． The improvement is about 5 to 2.0 times.
上記実施例においては、ＣＯｌ レーザービームを照射
したが、他のレーザ光、電子ビーム等の高密度エネルギ
ー源を用いて局所的に加熱溶融することができる。また
、金属Ｍｇ織の微細化層の厚さを任意に変えることによ
って、微細化処理後に表面を切削しても効果が出るよう
にすることができる。In the above embodiments, a COl laser beam was used, but other high-density energy sources such as laser light and electron beams can be used to locally heat and melt the material. Further, by arbitrarily changing the thickness of the fine layer of the metal Mg woven fabric, it is possible to obtain an effect even if the surface is cut after the fine treatment.
（発明の効果）
第１の発明においては、アルミニウム部品の所要部位を
高密度エネルギー源によりグレージング処理した後、固
溶化・時効処理することにより所要部位の疲労強度を大
巾に向上できる。(Effects of the Invention) In the first invention, the fatigue strength of the required portions can be greatly improved by subjecting the required portions of the aluminum component to glazing treatment using a high-density energy source and then subjecting them to solution treatment and aging treatment.
第２の発明においては、スクロール部材の端板とラップ
の根元との角隅部を高密度エネルギー源によりグレージ
ング処理した後、固溶化・時効処理したため、角隅部の
疲労強度が向上する。従って、ラップの高さを高くして
スクロール型流体機械の能力を増大させることができる
。また、狭隘な角隅部の疲労強度を四重を大きくするこ
となく、容易、かつ、低コストで向上することができる
。In the second invention, the corner portion between the end plate of the scroll member and the base of the wrap is subjected to glazing treatment using a high-density energy source and then subjected to solution treatment and aging treatment, so that the fatigue strength of the corner portion is improved. Therefore, the height of the wrap can be increased to increase the capacity of the scroll-type fluid machine. Further, the fatigue strength of a narrow corner can be easily improved at low cost without increasing the quadrupling.
第１図（ａ）、（ｂ）はグレージング処理前後の金属組
織を示す写真、第２図は本発明のｌ実施例における疲労
強度及び残留応力の変化を示す線図である。第３図はス
クロール部材の１例を示し、第３図（ａ）は正面図、第
３図（ｂ）は断面図である。
（ｄ）
地１図
Ｃｂ）
（ｄ）
第２図
第３図
（ｂ）FIGS. 1(a) and 1(b) are photographs showing the metal structure before and after glazing treatment, and FIG. 2 is a diagram showing changes in fatigue strength and residual stress in Example 1 of the present invention. FIG. 3 shows an example of a scroll member, with FIG. 3(a) being a front view and FIG. 3(b) being a sectional view. (d) Figure 1 Cb) (d) Figure 2 Figure 3 (b)
Claims (2)
源によりグレージング処理した後、固溶化・時効処理す
ることを特徴とするアルミニウム部品の強度向上方法。(1) A method for improving the strength of aluminum parts, which comprises glazing a desired part of the aluminum part using a high-density energy source, and then subjecting it to solution treatment and aging treatment.
ール型流体機械的用アルミニウム製スクロール部材にお
いて、上記端板と上記ラップの根元との角隅部を高密度
エネルギー源によりグレージング処理した後、固溶化・
時効処理したことを特徴とするスクロール部材。(2) In a scroll-type aluminum scroll member for hydromechanical use in which a spiral wrap is erected on an end plate, the corner between the end plate and the base of the wrap is glazed with a high-density energy source. After treatment, solid solution
A scroll member characterized by being subjected to an aging treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26386289A JPH03126850A (en) | 1989-10-12 | 1989-10-12 | Improvement of aluminum parts strength and scroll member using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26386289A JPH03126850A (en) | 1989-10-12 | 1989-10-12 | Improvement of aluminum parts strength and scroll member using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03126850A true JPH03126850A (en) | 1991-05-30 |
Family
ID=17395275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26386289A Pending JPH03126850A (en) | 1989-10-12 | 1989-10-12 | Improvement of aluminum parts strength and scroll member using same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03126850A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1239054A1 (en) * | 2001-03-07 | 2002-09-11 | Bayerische Motoren Werke Aktiengesellschaft | Heat treatment of hypereutectic Al-Si alloys |
| US10766120B2 (en) | 2014-10-16 | 2020-09-08 | Mitsubishi Heavy Industries Automotive Thermal Systems Co., Ltd. | Method and device for manufacturing compressor scrolls, compressor scroll, and scroll compressor |
-
1989
- 1989-10-12 JP JP26386289A patent/JPH03126850A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1239054A1 (en) * | 2001-03-07 | 2002-09-11 | Bayerische Motoren Werke Aktiengesellschaft | Heat treatment of hypereutectic Al-Si alloys |
| US10766120B2 (en) | 2014-10-16 | 2020-09-08 | Mitsubishi Heavy Industries Automotive Thermal Systems Co., Ltd. | Method and device for manufacturing compressor scrolls, compressor scroll, and scroll compressor |
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