JPH0237818B2 - - Google Patents
Info
- Publication number
- JPH0237818B2 JPH0237818B2 JP59022976A JP2297684A JPH0237818B2 JP H0237818 B2 JPH0237818 B2 JP H0237818B2 JP 59022976 A JP59022976 A JP 59022976A JP 2297684 A JP2297684 A JP 2297684A JP H0237818 B2 JPH0237818 B2 JP H0237818B2
- Authority
- JP
- Japan
- Prior art keywords
- casting
- mold
- aluminum wheel
- water mist
- cooling
- 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.)
- Expired - Lifetime
Links
- 238000005266 casting Methods 0.000 claims description 58
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 50
- 229910052782 aluminium Inorganic materials 0.000 claims description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 238000001816 cooling Methods 0.000 claims description 26
- 239000003595 mist Substances 0.000 claims description 26
- 238000000034 method Methods 0.000 description 12
- 239000007921 spray Substances 0.000 description 10
- 238000007711 solidification Methods 0.000 description 9
- 230000008023 solidification Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D30/00—Cooling castings, not restricted to casting processes covered by a single main group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
- B22D29/001—Removing cores
- B22D29/006—Removing cores by abrasive, water or air blasting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D31/00—Cutting-off surplus material, e.g. gates; Cleaning and working on castings
- B22D31/002—Cleaning, working on castings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Description
【発明の詳細な説明】
［産業上の利用分野］
本考案は、型間で成形、凝固させた後アルミホ
イール鋳物の冷却を行なう鋳造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a casting method in which an aluminum wheel casting is cooled after being formed between molds and solidified.
［従来の技術］
従来、アルミホイールの鋳物を型間で成形する
鋳造方法においては、型締め、凝固後の鋳物の冷
却は、鋳物を型間に保持したまま型の温度を下げ
る方法によつていた。たとえば、金型間で鋳物を
型締めして成形した後、金型を水ミスト又はエア
で外部から冷却する方法によつていた。[Prior art] Conventionally, in a casting method in which aluminum wheel castings are formed between molds, cooling of the casting after mold clamping and solidification is carried out by lowering the temperature of the mold while the casting is held between the molds. was. For example, after molding a casting by clamping it between molds, the mold is cooled from the outside with water mist or air.
このような方法においては、鋳造時の鋳物の凝
固時間はある程度短縮されるものの、熱容量の大
きい金型の中で鋳物を冷却していたので、鋳物を
所定の取出し温度まで冷却する冷却時間が長くか
かるという問題があつた。もし仮に、この冷却時
間を短かくすると、取り出し時には鋳物が冷却不
足でまだ十分な硬さに達していないため、鋳物を
押し出しピン等により型から取り出す際に、鋳物
が変形するという問題が生じる。とくにアルミの
鋳物の場合、鋳鋼の鋳物に比べ強度的に弱いとと
もに、アルミホイールは、たとえばインゴツト等
に比べれば薄肉であるから、十分に冷却されてい
ない内に取り出すと、取り出し時に鋳物が変形し
やすい。したがつて、従来方法では冷却時間の短
縮が困難であり、そのため、アルミホイール鋳造
のサイクルタイムを短かくして生産性を向上する
ことが困難であつた。 Although this method reduces the solidification time of the casting during casting to some extent, since the casting is cooled in a mold with a large heat capacity, it takes a long time to cool the casting to the predetermined take-out temperature. I had a problem with it. If this cooling time were to be shortened, the casting would be insufficiently cooled and have not yet reached sufficient hardness at the time of removal, causing the problem that the casting would be deformed when removed from the mold using an extrusion pin or the like. In particular, aluminum castings are weaker than steel castings, and aluminum wheels are thinner than, for example, ingots, so if you take them out before they have cooled down sufficiently, the castings will deform when you take them out. Cheap. Therefore, with the conventional method, it is difficult to shorten the cooling time, and therefore, it is difficult to shorten the cycle time of aluminum wheel casting and improve productivity.
［発明の目的］
本発明は、上記のような問題に対処するため
に、アルミホイール鋳造時鋳物を効率よく短時間
で所定の温度に冷却し、冷却時間の短縮によつて
鋳造のサイクルタイムを短縮することを目的とす
る。[Object of the Invention] In order to solve the above-mentioned problems, the present invention efficiently cools the casting to a predetermined temperature in a short time when casting an aluminum wheel, and reduces the casting cycle time by shortening the cooling time. The purpose is to shorten it.
［発明の構成］
この目的に沿う本発明のアルミホイールの水ミ
スト冷却鋳造法は、型間で成形されたアルミホイ
ールの鋳物を型間で少なくともその表面を凝固完
了させた後に、一方の型に鋳物を保持させた状態
のまま型同志を離間させ、前記一方の型から鋳物
を取り出す前に、該鋳物自体を水ミストにより冷
却する方法から成る。しかる後に、冷却されたア
ルミホイールの鋳物が型から取り出される。[Structure of the Invention] The water mist cooling casting method for aluminum wheels of the present invention, which meets this objective, involves solidifying at least the surface of an aluminum wheel casting formed between the molds, and then casting the aluminum wheel into one mold. This method consists of separating the molds while holding the casting, and cooling the casting itself with water mist before removing the casting from one of the molds. Thereafter, the cooled aluminum wheel casting is removed from the mold.
［発明の作用］
このような方法においては、アルミホイールの
少なくとも表面が凝固された後に、水ミストによ
り直接強制的に冷却される。この水ミストによる
強制冷却開始のタイミングは、本発明においては
非常に重要である。というのは、アルミの鋳物
は、鋳鋼等に比べ、強制冷却する際に、いわゆる
「引け」が生じやすく、また、微細な水ミストで
あつても、表面が凝固していないと表面肌荒れを
招きやすい。したがつて、少なくともアルミホイ
ールの鋳物の表面が凝固完了した後に、この水ミ
ストによる強制冷却を行うことにより、上記のよ
うな引けや肌荒れが防止される。また本発明にお
ける水ミストによる冷却は、表面の凝固完了後で
かつ型離間後にアルミホイール鋳物を一方の型に
保持させた状態で行われる。アルミホイールは、
前述の如くインゴツト等の鋳造品に比べれば薄肉
であり、アルミは鋳鋼等に比べれば強度的に弱い
から、まだ高温のアルミホイールを一方の型に保
持させておくことにより、たとえ冷却時に歪等に
よる応力が生じたとしても、アルミホイールの形
状は所定形状に保持される。そしてこの水ミスト
による冷却は、型を介してでなく水ミストにより
鋳物自体が直接冷却されるので、従来のように熱
容量の大きい型の温度まで所定値に下げる必要は
なくなり、鋳物自体が効率よく冷却されて、短時
間で所定の温度に冷却される。[Operation of the Invention] In such a method, after at least the surface of the aluminum wheel is solidified, it is directly and forcibly cooled by water mist. The timing of starting forced cooling using water mist is very important in the present invention. This is because aluminum castings are more prone to "shrinkage" when forcedly cooled than cast steel, and even fine water mist can cause surface roughness if the surface is not solidified. Cheap. Therefore, by performing forced cooling using the water mist at least after the surface of the aluminum wheel casting is completely solidified, the above-mentioned shrinkage and rough skin can be prevented. Further, the cooling by water mist in the present invention is carried out after the surface solidification is completed and after the molds have been separated, while the aluminum wheel casting is held in one mold. Aluminum wheels are
As mentioned above, the walls are thin compared to cast products such as ingots, and aluminum is weaker in strength than cast steel, so by holding the still-hot aluminum wheel in one mold, it is possible to prevent distortion during cooling. Even when stress is generated, the shape of the aluminum wheel is maintained in a predetermined shape. In addition, with this water mist cooling, the casting itself is directly cooled by the water mist rather than through the mold, so there is no need to lower the temperature of the mold with a large heat capacity to a predetermined value as in the past, and the casting itself is efficiently cooled. It is cooled down to a predetermined temperature in a short time.
［発明の効果］
したがつて、アルミホイール鋳物自体の効率の
良い冷却によつて凝固完了後の鋳物冷却時間を大
巾に短縮することができ、冷却時間の短縮により
鋳造のサイクルタイムを大巾に短縮して、生産性
を向上することができるという効果が得られる。[Effects of the invention] Therefore, by efficiently cooling the aluminum wheel casting itself, the cooling time of the casting after solidification is completed can be greatly shortened, and the casting cycle time can be greatly reduced by shortening the cooling time. This has the effect of improving productivity.
［実施例］
以下に本発明のアルミホイールの水ミスト冷却
鋳造法の望ましい実施例を図面を参照して説明す
る。[Example] Hereinafter, a preferred example of the water mist cooling casting method for aluminum wheels of the present invention will be described with reference to the drawings.
第１図および第２図は、本発明の一実施例に係
るアルミホイールの水ミスト冷却鋳造法を実施す
るための装置を示しており、アルミホイールの低
圧鋳造法に適用したものを示している。 FIGS. 1 and 2 show an apparatus for carrying out a water mist cooling casting method for aluminum wheels according to an embodiment of the present invention, and show an apparatus applied to a low-pressure casting method for aluminum wheels. .
図中、１は下型、２上型、３は横型を示してお
り、鋳物としてのアルミホイール４は、下型１、
上型２および横型３間で低圧鋳造される。５は、
冷却完了後の鋳物４を、上型２から押し出して取
り出す押し出しピンである。第１図は型締め時の
状態、第２図は、鋳物４を凝固後型同志を離間さ
せた状態を示している。 In the figure, 1 is a lower mold, 2 is an upper mold, and 3 is a horizontal mold. The aluminum wheel 4 as a casting is a lower mold 1,
Low-pressure casting is performed between an upper die 2 and a horizontal die 3. 5 is
This is an extrusion pin that extrudes and takes out the casting 4 from the upper mold 2 after cooling has been completed. FIG. 1 shows the state when the molds are clamped, and FIG. 2 shows the state in which the molds are separated from each other after the casting 4 has been solidified.
離間された後の上型２、下型１の型間には、上
型２に保持されているアルミホイール４に向けて
水ミスト６をスプレー状に噴射するスプレーチツ
プ７が設けられる。スプレーチツプ７は、型同志
が離間された後に型間に移動される型式のもので
もよく、固定取付けされていて型間離間後のアル
ミホイール４の方向に水ミストを噴射できる型式
のものであつてもよい。また、スプレーチツプ７
の個数も、スプレーの拡がり、アルミホイール４
の大きさ等を考慮して適当な個数でよい。なお、
スプレーチツプ７は、図示を省略した水供給装置
に接続されている。 A spray tip 7 for spraying water mist 6 toward the aluminum wheel 4 held by the upper mold 2 is provided between the upper mold 2 and the lower mold 1 after they have been separated. The spray tip 7 may be of a type that is moved between the molds after the molds are separated, or it may be of a type that is fixedly attached and can spray water mist in the direction of the aluminum wheel 4 after the molds have been separated. It's okay. Also, spray tip 7
The number of pieces, the spread of the spray, the aluminum wheels 4
An appropriate number may be used, taking into account the size of the In addition,
The spray tip 7 is connected to a water supply device (not shown).
上記のように構成された装置を用いて、本発明
のアルミホイールの水ミスト冷却鋳造法はつぎの
ように実施される。 Using the apparatus configured as described above, the water mist cooling casting method for aluminum wheels of the present invention is carried out as follows.
まず、下型１、上型２および横型３間に鋳物４
が型締めされて、アルミホイール４として成形さ
れる。つぎにその状態で、型間でアルミホイール
４が凝固される。そして、少なくともアルミホイ
ール４の表面の凝固が完了した後に、横型３が離
間され上型２と下型１とが離間されるが、その
際、アルミホイール４は上型に保持されたまま型
同志が離間される。このアルミホイール表面の凝
固完了は、通常型内に埋設されている温度計によ
り、型とアルミホイール表面との界面近傍の温度
を検知すれば容易に判定できる。つまり、検知温
度が、アルミの融点よりも低くなれば、少なくと
も表面が凝固したと判定できる。離型間後、まだ
高温状態のアルミホイール４に向けて、水ミスト
６がスプレーチツプ７から噴射される。水ミスト
６は、スプレー状に適当な拡がり角で噴射される
ため、アルミホイール４はその下面側全面が水ミ
スト６により直接冷却される。 First, the casting 4 is placed between the lower mold 1, upper mold 2, and horizontal mold 3.
is mold-clamped and formed into an aluminum wheel 4. Next, in this state, the aluminum wheel 4 is solidified between the molds. After at least the solidification of the surface of the aluminum wheel 4 is completed, the horizontal mold 3 is separated and the upper mold 2 and the lower mold 1 are separated, but at this time, the aluminum wheel 4 is held by the upper mold and is placed between the molds. are spaced apart. Completion of solidification of the aluminum wheel surface can be easily determined by detecting the temperature near the interface between the mold and the aluminum wheel surface using a thermometer embedded in the mold. In other words, if the detected temperature becomes lower than the melting point of aluminum, it can be determined that at least the surface has solidified. After the mold release period, water mist 6 is sprayed from the spray tip 7 toward the aluminum wheel 4, which is still in a high temperature state. Since the water mist 6 is sprayed at an appropriate spreading angle, the entire lower surface of the aluminum wheel 4 is directly cooled by the water mist 6.
この水ミスト６によるアルミホイール４の冷却
においては、型間離間後の冷却であるため、アル
ミホイール４を冷却する際に従来のように熱容量
の大なる型とともに冷却する必要がなくなり、ア
ルミホイール４だけを所定の温度にまで冷却すれ
ばよいことになる。しかも、アルミホイール４自
体に直接水ミスト６が噴きかけられ、アルミホイ
ール４自体が直接強制冷却されるため、アルミホ
イール４は、効率よく冷却されて短時間で所定の
温度まで低下される。また、水ミストによる強制
冷却開始の時点では、少なくともアルミホイール
４の表面の凝固は完了しているから、その凝固層
によつてアルミホイールの形状が所定形状に保た
れ引けの発生が防止されるとともに、表面肌荒れ
が防止される。そして、所定の温度に冷却後、押
し出しピン５の作動により、アルミホイール４が
上型２から取り出される。その際、アルミホイー
ル４は、所定の低温で必要な硬さになるように冷
却された後であるので、変形等のトラブルを生じ
ることなく円滑に取り出され、一連の鋳造サイク
ルが完了する。 In the cooling of the aluminum wheel 4 by this water mist 6, since the cooling is performed after the molds are separated, there is no need to cool the aluminum wheel 4 together with the mold, which has a large heat capacity, as in the conventional case. It is only necessary to cool down only that part to a predetermined temperature. Moreover, since the water mist 6 is directly sprayed onto the aluminum wheel 4 itself, and the aluminum wheel 4 itself is directly forcedly cooled, the aluminum wheel 4 is efficiently cooled and lowered to a predetermined temperature in a short time. In addition, at least the surface of the aluminum wheel 4 has been solidified at the time of starting forced cooling by water mist, so the solidified layer maintains the shape of the aluminum wheel in a predetermined shape and prevents shrinkage. At the same time, surface roughening is prevented. After cooling to a predetermined temperature, the aluminum wheel 4 is taken out from the upper die 2 by the operation of the push-out pin 5. At this time, since the aluminum wheel 4 has been cooled to the required hardness at a predetermined low temperature, it can be taken out smoothly without any troubles such as deformation, and the series of casting cycles is completed.
この一連の鋳造サイクルを、第３図に示す。本
発明を、アルミホイール４に対し、凝固後、スプ
レーチツプ７からの水ミスト６の噴射時間を15秒
ないし60秒、噴射量を150ｇ／分ないし1000ｇ／
分の条件で実施した。その結果、型締め時間、凝
固時間および鋳物取り出し時間は従来の方法と同
程度であつたが、冷却時間について、従来３分な
いし４分かかつていたものが、１分ないし２分に
短縮された。そのため、従来７分／ケないし8.5
分／ケであつた鋳物のサイクルタイムが、５分／
ケないし6.5分／ケと大巾な比率でもつて短縮さ
れた。 This series of casting cycles is shown in FIG. The present invention is applied to the aluminum wheel 4, after solidification, the water mist 6 is sprayed from the spray tip 7 for 15 seconds to 60 seconds, and the spray amount is 150 g/min to 1000 g/min.
The test was carried out under the following conditions. As a result, the mold clamping time, solidification time and casting removal time were comparable to conventional methods, but the cooling time was reduced from 3 to 4 minutes to 1 to 2 minutes. . Therefore, conventionally 7 minutes / ke to 8.5
The cycle time for hot castings was 5 minutes/ke.
Even the time was shortened by a huge ratio of 6.5 minutes to 6.5 minutes.
以上の説明から明らかなように、本発明によれ
ば、少なくとも表面凝固完了後のアルミホイール
の鋳物を直接水ミストによつて強制冷却すること
により、鋳物の冷却時間を大巾に短縮することが
でき、鋳物のサイクルタイムを大巾に短縮して、
生産性を向上させることができるという効果が得
られる。 As is clear from the above description, according to the present invention, the cooling time of the casting can be greatly shortened by directly forcibly cooling the aluminum wheel casting after the completion of surface solidification using water mist. The cycle time of castings can be drastically shortened.
The effect is that productivity can be improved.
第１図は本発明の一実施例に係る方法を実施す
るための装置の断面図、第２図は第１図の装置の
型同志離間後の状態を示す縦断面図、第３図は鋳
造サイクルを示す時間と各工程との関係図、であ
る。
１……下型、２……一方の型としての上型、３
……横型、４……鋳物としてのアルミホイール、
５……押し出しピン、６……水ミスト、７……ス
プレーチツプ。
FIG. 1 is a sectional view of an apparatus for carrying out a method according to an embodiment of the present invention, FIG. 2 is a longitudinal sectional view of the apparatus of FIG. 1 after the molds have been separated, and FIG. 3 is a casting It is a relationship diagram between time and each process showing a cycle. 1...Lower mold, 2...Upper mold as one mold, 3
...Horizontal type, 4...Aluminum wheel as a casting,
5... Push-out pin, 6... Water mist, 7... Spray tip.
Claims (1)
間で少なくともその表面を凝固完了させた後に、
一方の型に鋳物を保持させた状態のまま型同志を
離間させ、前記一方の型から鋳物を取り出す前
に、該鋳物自体を水ミストにより冷却することを
特徴とするアルミホイールの水ミスト冷却鋳造
法。1 After solidifying at least the surface of the aluminum wheel casting formed between the molds,
Water mist cooling casting of an aluminum wheel, characterized in that the molds are separated while the casting is held in one mold, and the casting itself is cooled with water mist before the casting is taken out from the one mold. Law.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2297684A JPS60170567A (en) | 1984-02-13 | 1984-02-13 | Method for casting under cooling with water mist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2297684A JPS60170567A (en) | 1984-02-13 | 1984-02-13 | Method for casting under cooling with water mist |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60170567A JPS60170567A (en) | 1985-09-04 |
| JPH0237818B2 true JPH0237818B2 (en) | 1990-08-27 |
Family
ID=12097587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2297684A Granted JPS60170567A (en) | 1984-02-13 | 1984-02-13 | Method for casting under cooling with water mist |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60170567A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11001917B2 (en) | 2016-04-28 | 2021-05-11 | Alotech Limited, Llc | Ablation casting process |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2574248B2 (en) * | 1986-07-22 | 1997-01-22 | トピ−工業株式会社 | Method and apparatus for heat treatment of cast aluminum wheel |
| DE19524176C1 (en) * | 1995-07-03 | 1996-09-26 | Daimler Benz Ag | Heat treatment process for light alloy castings |
| EP1900457A1 (en) * | 2006-09-13 | 2008-03-19 | Georg Fischer Druckguss GmbH & Co. KG | Method and apparatus for producing castings from light alloys |
| FR2906168A3 (en) * | 2006-09-21 | 2008-03-28 | Renault Sas | Molding metallic part e.g. aluminum alloy comprises casting liquid metal in fusion within mold, and cooling metal for solidification of metal and reducing temperature of solidified metal by transferring heat between metal and wall of mold |
| JP5035086B2 (en) * | 2008-04-15 | 2012-09-26 | トヨタ自動車株式会社 | Coarse material cooling apparatus and method |
| CN102416444B (en) * | 2011-12-06 | 2013-08-14 | 宁波灿东模具技术有限公司 | Casting method for hub |
| JP5935619B2 (en) | 2012-09-18 | 2016-06-15 | マツダ株式会社 | Cooling method and cooling device for cast product made of Al alloy |
| CN104549883B (en) * | 2014-08-06 | 2017-01-25 | 秦皇岛开发区美铝合金有限公司 | Low-pressure bilateral aluminum alloy casting wheel spray system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5171833A (en) * | 1974-12-19 | 1976-06-22 | Kubota Ltd | Tainetsuchukohinno chuzogoshorihoho |
| JPS55156641A (en) * | 1979-05-28 | 1980-12-05 | Nippon Mining Co Ltd | Force-cooling method for metal ingot |
| JPS5881548A (en) * | 1981-11-11 | 1983-05-16 | Topy Ind Ltd | Low pressure die casting method of wheel |
-
1984
- 1984-02-13 JP JP2297684A patent/JPS60170567A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5171833A (en) * | 1974-12-19 | 1976-06-22 | Kubota Ltd | Tainetsuchukohinno chuzogoshorihoho |
| JPS55156641A (en) * | 1979-05-28 | 1980-12-05 | Nippon Mining Co Ltd | Force-cooling method for metal ingot |
| JPS5881548A (en) * | 1981-11-11 | 1983-05-16 | Topy Ind Ltd | Low pressure die casting method of wheel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11001917B2 (en) | 2016-04-28 | 2021-05-11 | Alotech Limited, Llc | Ablation casting process |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60170567A (en) | 1985-09-04 |
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