JPS6167524A - Spinning method of hollow cylindrical tube stock - Google Patents
Spinning method of hollow cylindrical tube stockInfo
- Publication number
- JPS6167524A JPS6167524A JP59189638A JP18963884A JPS6167524A JP S6167524 A JPS6167524 A JP S6167524A JP 59189638 A JP59189638 A JP 59189638A JP 18963884 A JP18963884 A JP 18963884A JP S6167524 A JPS6167524 A JP S6167524A
- Authority
- JP
- Japan
- Prior art keywords
- tube stock
- thickness
- tensile force
- cylindrical tube
- chuck
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明は、中空円筒管材のスピニング加工方法、特に
旗竿や照明灯用支柱のような一端と他端の径が異なるい
わゆるテーパー管の￥Ｊ造に適する方法に関する。[Detailed Description of the Invention] Industrial Field of Application This invention relates to a method for spinning hollow cylindrical tube materials, and particularly to the J construction of so-called tapered tubes, such as flagpoles and lighting poles, where one end and the other end have different diameters. Regarding suitable methods.
従来の技術
従来、部分的に径が異なる円筒管あるい（，１照明灯用
ポールのＪ：うなテーパー管（よスウ■−ジング１１１
１ Ｉ方法が一般に採用さ凄してい／こ。Conventional technology Conventionally, cylindrical tubes with partially different diameters or tapered tubes (111
1 The I method has been widely adopted.
しかし、素材である金属材料の性で１によっては、」二
下の型を高速で上下動して成形するスウエージング加工
の際に合金相識が劣化し、製品の使用中に秒々の問題が
生起していた。However, depending on the characteristics of the metal material used as the raw material, the alloy phase may deteriorate during the swaging process, in which two molds are moved up and down at high speed, causing problems every second while using the product. It was happening.
発明が解決しようとする問題点
ところで、上記問題を避けるためのバイブのスピニング
加工に、１プいても、累實径を細くづる１（４合、ある
い（よテーパー状に加」ニする場合、肉厚を一定に保持
するためには芯金を入れる必要がある。しかし、設（稲
の点で問題があり、その調整方法ら複７１［どなるため
に芯金を使用しないで加工すると、答の肉厚にばらつき
が生じ易く破断あるいは座［ｉｉ′Ｉの原因とイＣっで
、加工が定常的に行なえなかった。Problems to be Solved by the Invention By the way, in order to avoid the above-mentioned problems, it is necessary to spin the vibrator to make the cumulative diameter thinner (1 (4), or (to add a tapered shape)). In order to keep the wall thickness constant, it is necessary to insert a core metal. However, there is a problem with the installation, and the adjustment method is complicated. The thickness of the material tends to vary, resulting in breakage or seating, and processing cannot be carried out regularly.
図面を参照して０体的に説明でると、第１０図は素管１
を成形ロール２によって、まず最小径に絞り込んでから
次第に右方に径を拡大するテーパー加工方法を示してい
る。第１１図は、素管１を成形ロール２によって、まず
テーパー加工しながら最小径にする加工方法を示してい
る。If you refer to the drawings and explain it in a physical way, Figure 10 shows the raw pipe 1.
This shows a taper processing method in which the diameter is first reduced to the minimum diameter using the forming roll 2, and then the diameter is gradually expanded to the right. FIG. 11 shows a method of processing the raw pipe 1 by first tapering it to the minimum diameter using the forming rolls 2.
第１０図に示した加工方法では、最小径に絞り込んだ箇
所であるア部で（よ肉厚が薄くなり、テーパー加工部で
あるイ部では肉厚が厚くなる。In the machining method shown in FIG. 10, the wall thickness becomes thinner at the part (A) where the diameter has been narrowed down to the minimum diameter, and the wall thickness becomes thicker at the part (A) where the tapered part is formed.
第１１図に示した加工方法ではテーパー加工部である工
部では肉厚が厚くなり、最小１￥に絞り込んだ箇所であ
るつ部では肉厚が薄くなる。In the machining method shown in FIG. 11, the wall thickness becomes thicker at the taper-processed part, and the wall thickness becomes thinner at the corner part, which is the part narrowed down to a minimum of 1 yen.
上記製法では、肉厚が薄くなっている最小径の部分では
座屈の原因になり、肉厚が厚くなるテーパ一部では製品
の長さが素管長に比較して縮んでしまうという問題があ
った。The above manufacturing method has the problem that buckling occurs at the smallest diameter part where the wall thickness is thinner, and the length of the product shrinks compared to the raw pipe length at the tapered part where the wall thickness is thicker. Ta.
間ｊΩ点の解決手段
上記問題を解決するため、この光明は下記の（ｊ４成を
とるスピニング加工方法Ｃ゛ある。すなわら、中空円筒
管材を回転させながら該ひ材周面に接阿ｌ自在で鎗伺艮
手方向に進退自在とした成形ロールｅ管材を所定形状に
成形する方法にＪｊいて、該円筒管材の輔・い方向に圧
縮力おにび２′または引張力をＩＩＩえる中空円筒管材
のスピニング１〕【」工方法である。Means for solving the problem at the jΩ point between In accordance with the method of forming a tube material into a predetermined shape, a forming roll that can freely move forward and backward in the direction of the cylindrical tube material has a hollow shape that can apply compressive force or tensile force in the direction of the cylindrical tube material. Spinning cylindrical pipe material 1] [This is the method.
この発明の方法で用いる装置を図面を参照して具体的に
説明すると、第１図（Ｊ上記装量の概用を示す斜視図、
第２図はての縦断面図である。この装置によってスピニ
ング加工りるには、素管１の両端にマンドリル７を挿入
し、Ｌ ｆＡｉタト側から駆動側チャック ・１て押え
、右端外側から応力付加側チャック５で押える。The apparatus used in the method of the present invention will be specifically explained with reference to the drawings.
FIG. 2 is a longitudinal sectional view of the end. To spin with this device, insert the mandrill 7 into both ends of the raw pipe 1, hold it down with the drive side chuck 1 from the L fAi side, and press it with the stress application side chuck 5 from the right end outside.
中間部を中間支持体３で支え、素管１を回転させながら
加工しようとする部分に成形ロール２を押しつ（プる。The intermediate portion is supported by an intermediate support 3, and while the raw tube 1 is rotated, a forming roll 2 is pushed onto the portion to be processed.
応力付加側チャックに（Ｊ油圧ｖｉ冒（油圧シリンダー
）６のビス［−ンロッド８が取付【）られており、この
油圧１ｍ Ｇににって、応力付加側チＡ・ツクに引張力
あるいは圧、縮力を加えることができる。A screw rod 8 of a hydraulic cylinder 6 is attached to the chuck on the stress-applying side, and this hydraulic pressure of 1 mG applies tension or pressure to the chuck on the stress-applying side , compression force can be applied.
この装置によってスピニング加工する例を具体的に説明
すると、第３図に示すとおり、成形ロール２を最小径に
絞り込む位置に当で、駆動用チャック ４によって素管
１を回転させながら成形ロール２を押し下げて所定の外
径になるように絞る。この際第１図および第２図に示し
Ｉこ油圧装置６によって、応力付加側チャック５に矢印
の方向に圧力を加えると、この最小径の部分の肉厚が、
第１０図および第１１図に示すように薄くならずにすむ
。次に成形ロールを右方へ移動させながら、その位置を
上げて、テーパー加工する１県には、第４図の矢印に示
すように、素管１に引張力を加えると第１０図および第
１１図に示すように管の肉厚が厚くならずにすむ。なお
成形時中間支持体３は可及的に成形ロールに接近させて
成形ロールとともに移動させるのが好ましい。To specifically explain an example of spinning processing using this device, as shown in FIG. Press down and squeeze to the specified outer diameter. At this time, when pressure is applied to the stress-applying side chuck 5 in the direction of the arrow by the hydraulic device 6 shown in FIGS. 1 and 2, the wall thickness of this minimum diameter portion becomes
This eliminates the need for thinning as shown in FIGS. 10 and 11. Next, while moving the forming roll to the right, raise its position and apply a tensile force to the raw pipe 1 as shown by the arrow in Fig. 4. As shown in Figure 11, the wall thickness of the tube does not need to be increased. During molding, it is preferable that the intermediate support 3 be moved as close as possible to the molding rolls and together with the molding rolls.
第５図は、最小径に絞り込んだまま、成る長さだ（シｆ
ｔｊｌ径に１１１１−ｃりる例で、この１易合す木管１
に矢印のように引張力が作用するように油圧装置６を年
初さぜる。Figure 5 shows the length obtained when the diameter is narrowed down to the minimum diameter.
In the example of 1111-c on the tjl diameter, this 1 easy-to-fit woodwind 1
At the beginning of the year, the hydraulic system 6 is turned on so that a tensile force is applied as shown by the arrow.
ところで、この応力付１＋ロ側チヤツク５に加える圧力
または引張力の大きさを無１’ｌ云為に選定したのでは
任意の肉厚の製品を（４Ｉることはできない。この応力
付加側チャック５に加える圧力または引張力等の応力の
決定方法を第７図乃至第９図を参照して具（木管に説明
する。By the way, if the magnitude of the pressure or tensile force to be applied to the stress-applied side chuck 5 is selected without consideration, it is not possible to produce a product with an arbitrary wall thickness. 5 will be explained with reference to FIGS. 7 to 9.
第７図においてテーパ一部の肉厚変動を名えると、長手
方向の伸びがないと仮定すると、加工前を長の断面積は
一定であるので、ＡＯ・・・素管の所面偵、
△・・・製品の任意の位置での断面積、Ｌ）Ｏ・・・素
？τの外径、
Ｄ・・・製品の上記１ヴ首での外径、
ｔｏ・・・素管の肉厚、
し・・・製品の上記（ｌ置での肉厚、
λＯ・・・索管長、
℃・・・テーパ一部の先端からの距四、Ｄ−・・・テー
パ一部先端部の外径
とすると、管の断面積は、
△０−πｔｏ（［）ｏ−ｔｏ）・・・（１）テーパー率
１／ｎをもつ管のβ位置での径は、Ｄ＝ Ｄ′＋ｆ２／
ｎ・・・（２）
テーパ一部先端からの距離λの位置の断面積へは
Ａ＝１／４ π［）２−１／４ π （Ｄ−２ｔ）
２＝ｙｒｔ （［）−ｔ ） ・・・ （３
）△＝Ａｏであるから（１）および（３）式よりＡＯ＝
π（Ｄｔ −ｔ ２）
よって理論肉厚は
ｔ＝ｏ ／２ ＜ １−ＪＥ −下−４ＡＯ／
ゝ’ｙｒＱ’ゝ ） ・・引）になるはずである。Referring to the wall thickness variation of the taper part in Fig. 7, assuming that there is no elongation in the longitudinal direction, the cross-sectional area of the length is constant before processing, so AO... △...Cross-sectional area at any position of the product, L)O...Element? Outer diameter of τ, D...Outer diameter of the product at the above 1V neck, to...Wall thickness of the raw pipe, I...Wall thickness of the product at the above (l position), λO...Wall thickness of the product Assuming that the pipe length is ℃...the distance from the tip of the tapered part 4 and D-...the outer diameter of the tapered part tip, the cross-sectional area of the pipe is △0-πto([)o-to)・...(1) The diameter at the β position of a pipe with a taper ratio of 1/n is D = D' + f2/
n...(2) The cross-sectional area at the distance λ from the tip of the tapered part is A=1/4 π[)2-1/4 π (D-2t)
2=yrt ([)-t) ... (3
) △=Ao, so from equations (1) and (3), AO=
π(Dt −t 2) Therefore, the theoretical thickness is t=o/2 < 1-JE-lower-4AO/
It should be ゝ'yrQ'ゝ)...subtraction).
つぎに、第８−ａ図の素管を加工して第８−ｂ図に示す
ような同じ肉厚の製品を製造する場合は素管も製品も体
積は等しいからＢＯ・・・素管の体積、Ｂ・・・製品の
体積、Ｄ・・・製品の外径
とすると、
Ｈａ −７ｒｔｏ（□ｏ−ｔｏ）Ｑｏ ・［５１製
品の外（ＹがＤまで減少し、良さがＱ、ｌど（Ｊ伸びる
と、その体積は、
Ｂ＝πｔｏ（Ｄ−ｔｏ＞ （、Ｑｏ ｉ−９，） −
１５１Ｂｏ ＝ｓであるから、
（ＤＯ−ｔｏ） Ｒ，ｏ ＝ （１） −ｔｏ
） （、Ｑｏ ＋Ａ ）、、１ ＝ （（Ｄｏ
−Ｄ ） ／ （Ｄ−Ｌｏ） ） 、ｒ、；。Next, when processing the raw pipe shown in Figure 8-a to produce a product with the same wall thickness as shown in Figure 8-b, the volume of the raw pipe and the product is the same, so BO... Volume, B...The volume of the product, D...The outer diameter of the product, Ha -7rto(□o-to)Qo ・[51Outside of the product (Y decreases to D, quality decreases to Q, l When (J is extended, its volume is B=πto(D−to> (,Qo i−9,) −
Since 151Bo = s, (DO-to) R,o = (1) -to
) (,Qo +A),,1 = ((Do
-D)/(D-Lo)), r,;.
・・・（７）
第９図を９ｉ１．４１ ｊ、て加工ロール２の送り速段
を説明ザると、
ΔＴ待時間の伸び△、ｅは
△ｆｌ＝ （（Ｄｏ −Ｄ） ／ （１）−ｔｏ） ）
ＶΔ１゛・・・（８）
よって管の肉厚を一定とする場合、Δ℃の伸び但あるい
は縮み量を与える引張応力あるいは圧縮応力を適宜に付
加すればよい。その［応力をＰとすると、巳を弾性係数
とすれは、Ｐ ＝ Ｅ ΔＡ Ｏ−Δｎ−ｆ９１
テーパー率１／ｎでテーパー管を１１１１ Ｔする場合
は、４）式において （−ｔＯとし、Ｄ＝Ｄ ”−＋
１２／ｎ −Ｄ −＋ＶΔＴ／ｎ”−ｆ口を考えれ
ばよい。...(7) Using Figure 9 as 9i1.41j to explain the feed speed stage of the processing roll 2, the elongation of ΔT waiting time Δ, e is Δfl= ((Do −D) / (1 )-to) )
VΔ1゛...(8) Therefore, when the wall thickness of the tube is kept constant, a tensile stress or compressive stress that gives an amount of elongation or contraction of Δ° C. may be appropriately applied. If the [stress is P and the elastic modulus is P = E ΔA O-Δn-f91 When the tapered pipe is 1111 T with a taper ratio of 1/n, in equation 4) (-tO and D =D”-+
12/n −D −+VΔT/n”−f should be considered.
この伸び量あるいは縮み■を検出して、油圧シリンダー
等により必要な応力を付加する。This amount of elongation or contraction (■) is detected and the necessary stress is applied using a hydraulic cylinder or the like.
そのために用いる装置の一例を第６図に示す。An example of a device used for this purpose is shown in FIG.
すなわち、第１図および第２図に示した装置において、
回転継手９を介して油圧装置（油圧シリンダー）６のピ
ストンロッド８によって応力が加えられるようになって
おり、被加工材である素管１の伸び吊あるいは縮み量を
変位量センサー１０によって検出し、その間によって上
記油圧装置６を制御できるようになっている。That is, in the apparatus shown in FIGS. 1 and 2,
Stress is applied by a piston rod 8 of a hydraulic device (hydraulic cylinder) 6 via a rotary joint 9, and a displacement sensor 10 detects the amount of expansion or contraction of the raw pipe 1, which is the workpiece material. , the hydraulic system 6 can be controlled between the two.
この発明によって素管１の直径を絞り込む加工を行なっ
たときの結果と、応力を加えずに絞り込む加工をしたと
きの結果を第１２図の説明図で示す。The explanatory diagram in FIG. 12 shows the results when the diameter of the raw pipe 1 is reduced according to the present invention and the results when the diameter is reduced without applying stress.
第１２図中横軸は素管 １を絞り込むときの成形ロール
の送り速度、縦軸は素管１の回転数（ｒｐｍ＞である。In FIG. 12, the horizontal axis represents the feed speed of the forming rolls when squeezing the raw pipe 1, and the vertical axis represents the rotational speed (rpm>) of the raw pipe 1.
第１２図中横軸は上記Ｄ／Ｄｏ＝８０％の場合であり、
四角中は［）／Ｄｏ＝５０％に絞り込んだときの結果で
ある。The horizontal axis in FIG. 12 is the case where D/Do=80%,
The inside square is the result when narrowing down to [)/Do=50%.
発明の詳細
な説明したように、この発明の効宋を曹約すると下記の
ようになる。As described in detail, the effects of this invention can be summarized as follows.
１）バイブのスピニング加工にＪ３いて、芯金を使用し
ない場合でもその加工限界を広範囲に拡大することがで
きる。1) Even if J3 is used for spinning vibrator and no core metal is used, the processing limit can be expanded over a wide range.
２）素管の肉厚を維持しながらスピニング加工が可能に
なる。2) Spinning processing is possible while maintaining the wall thickness of the raw pipe.
３）肉厚が厚くなることが防止できるのて・、素管に比
較して製品の管長が伸び、歩留向上が期待できる。3) Since the wall thickness can be prevented from increasing, the length of the product can be extended compared to the raw pipe, and an improvement in yield can be expected.
４）適当な応力制ｆｌ１１方法と組合ぼること（こまっ
て、製品の肉厚を任意に調節することができる。4) Combining with an appropriate stress control fl11 method (this allows the thickness of the product to be adjusted as desired.
第１図はこの発明の一具体例の直Ｉ８を説明するための
芸冒の斜視図、
第２図は上記装置の縦断面図、
第３図乃至第５図はこの発明の方法によって、具体的に
中空円管を加工する原理を示す説明図、
第６図はこの発明の方法によって、製品の肉厚を制御す
るためのｖｉ置の一例を示す説明図。
第７図乃至第９図はこの発明の方法の原理を説明する説
明図。
第１０図および第１１図は従来法の問題点を説明するた
めの装置の一部を示す断面図。
第１２図は実験結果の説明図。
１・・・素管、２・・・成形ロール、３・・・中間支持
体、４・・・駆動側チャック、
５・・・応力付加側チャック、６・・・油圧装置、７・
・・マンドリル、８・・・ピストンロッド、９・・・回
転継手、１０・・・変位置センサー。
第１図
第２図
第３図
第４図
必５図
第６図
第８−ａ図 第８−ｂ図
第９図
第１Ｏしく
第１／図FIG. 1 is a perspective view of an illustration for explaining the straight line I8 of a specific example of the present invention, FIG. 2 is a vertical cross-sectional view of the above-mentioned device, and FIGS. FIG. 6 is an explanatory diagram showing the principle of processing a hollow circular tube according to the method of the present invention. FIG. FIG. 7 to FIG. 9 are explanatory diagrams explaining the principle of the method of the present invention. FIG. 10 and FIG. 11 are cross-sectional views showing a part of the device for explaining the problems of the conventional method. FIG. 12 is an explanatory diagram of the experimental results. DESCRIPTION OF SYMBOLS 1... Raw pipe, 2... Forming roll, 3... Intermediate support, 4... Drive side chuck, 5... Stress application side chuck, 6... Hydraulic device, 7...
...Mandrill, 8...Piston rod, 9...Rotary joint, 10...Variation position sensor. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 8-a Figure 8-b Figure 9 Figure 1
Claims (2)
自在で管材長手方向に進退自在とした成形ロールで管材
を所定形状に成形する方法において、該円筒管材の軸心
方向に圧縮力および／または引張力を加えることを特徴
とする中空円筒管材のスピニング加工方法。(1) In a method of forming a hollow cylindrical tube material into a predetermined shape using a forming roll that can freely move toward and away from the peripheral surface of the tube material while rotating the tube material and can move forward and backward in the longitudinal direction of the tube material, a compressive force is applied in the axial direction of the cylindrical tube material. and/or a method for spinning a hollow cylindrical tube material, the method comprising applying a tensile force.
、この検知に基づいて円筒管材に圧縮力および／または
引張力を加える特許請求の範囲（１）記載の中空円筒管
材のスピニング加工方法。(2) The method for spinning a hollow cylindrical tube according to claim (1), which detects the amount of expansion and contraction of the cylindrical tube during spinning and applies compressive force and/or tensile force to the cylindrical tube based on this detection. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59189638A JPS6167524A (en) | 1984-09-12 | 1984-09-12 | Spinning method of hollow cylindrical tube stock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59189638A JPS6167524A (en) | 1984-09-12 | 1984-09-12 | Spinning method of hollow cylindrical tube stock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6167524A true JPS6167524A (en) | 1986-04-07 |
Family
ID=16244650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59189638A Pending JPS6167524A (en) | 1984-09-12 | 1984-09-12 | Spinning method of hollow cylindrical tube stock |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6167524A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04105720A (en) * | 1990-08-22 | 1992-04-07 | Mitsuma Giken Kk | Manufacture of crown roller |
| WO2006038551A1 (en) * | 2004-10-01 | 2006-04-13 | Nihon Spindle Mfg. Co., Ltd. | Vertical spinning machine |
| CN102941438A (en) * | 2012-09-14 | 2013-02-27 | 河南平高电气股份有限公司 | Processing method of electrically conductive contact finger |
| CN111151630A (en) * | 2019-12-04 | 2020-05-15 | 中国工程物理研究院机械制造工艺研究所 | Forming method of straight flange conical part |
| IT202200004430A1 (en) * | 2022-03-09 | 2023-09-09 | Univ Degli Studi Padova | EQUIPMENT FOR THE FLUO-FORMING OF PRODUCTS, TO BE INSTALLED IN A MACHINE PARTICULARLY OF THE TYPE EQUIPPED WITH MEANS WITH WHICH TO ROTATE AN PRODUCT TO BE PROCESSED AND PROCEDURE FOR THE FLUO-FORMING OF PRODUCTS |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5612208A (en) * | 1979-07-03 | 1981-02-06 | Scandia Packaging Mach | Link mechanism and conveying assembly employing said mechanism |
| JPS57160521A (en) * | 1981-03-31 | 1982-10-02 | Mitsubishi Heavy Ind Ltd | Formation of cylindrical object to be worked |
| JPS5954425A (en) * | 1982-09-20 | 1984-03-29 | Toshiba Mach Co Ltd | Method and device for rotation contour spinning |
| JPS603922A (en) * | 1983-06-20 | 1985-01-10 | Mitsubishi Heavy Ind Ltd | Method and device for spinning |
| JPS60145226A (en) * | 1984-01-10 | 1985-07-31 | Mitsubishi Heavy Ind Ltd | Drawing method of pipe |
-
1984
- 1984-09-12 JP JP59189638A patent/JPS6167524A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5612208A (en) * | 1979-07-03 | 1981-02-06 | Scandia Packaging Mach | Link mechanism and conveying assembly employing said mechanism |
| JPS57160521A (en) * | 1981-03-31 | 1982-10-02 | Mitsubishi Heavy Ind Ltd | Formation of cylindrical object to be worked |
| JPS5954425A (en) * | 1982-09-20 | 1984-03-29 | Toshiba Mach Co Ltd | Method and device for rotation contour spinning |
| JPS603922A (en) * | 1983-06-20 | 1985-01-10 | Mitsubishi Heavy Ind Ltd | Method and device for spinning |
| JPS60145226A (en) * | 1984-01-10 | 1985-07-31 | Mitsubishi Heavy Ind Ltd | Drawing method of pipe |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04105720A (en) * | 1990-08-22 | 1992-04-07 | Mitsuma Giken Kk | Manufacture of crown roller |
| WO2006038551A1 (en) * | 2004-10-01 | 2006-04-13 | Nihon Spindle Mfg. Co., Ltd. | Vertical spinning machine |
| CN102941438A (en) * | 2012-09-14 | 2013-02-27 | 河南平高电气股份有限公司 | Processing method of electrically conductive contact finger |
| CN111151630A (en) * | 2019-12-04 | 2020-05-15 | 中国工程物理研究院机械制造工艺研究所 | Forming method of straight flange conical part |
| CN111151630B (en) * | 2019-12-04 | 2021-07-20 | 中国工程物理研究院机械制造工艺研究所 | Forming method of straight flange conical part |
| IT202200004430A1 (en) * | 2022-03-09 | 2023-09-09 | Univ Degli Studi Padova | EQUIPMENT FOR THE FLUO-FORMING OF PRODUCTS, TO BE INSTALLED IN A MACHINE PARTICULARLY OF THE TYPE EQUIPPED WITH MEANS WITH WHICH TO ROTATE AN PRODUCT TO BE PROCESSED AND PROCEDURE FOR THE FLUO-FORMING OF PRODUCTS |
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