JPH0316206B2 - - Google Patents
Info
- Publication number
- JPH0316206B2 JPH0316206B2 JP58147590A JP14759083A JPH0316206B2 JP H0316206 B2 JPH0316206 B2 JP H0316206B2 JP 58147590 A JP58147590 A JP 58147590A JP 14759083 A JP14759083 A JP 14759083A JP H0316206 B2 JPH0316206 B2 JP H0316206B2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- small diameter
- shoulder
- spinning
- manufacturing
- 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
- 238000000034 method Methods 0.000 claims description 47
- 238000009987 spinning Methods 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 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
- 230000001154 acute effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 17
- 239000000047 product Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000003672 processing method Methods 0.000 description 4
- 239000011265 semifinished product Substances 0.000 description 4
- 229910001369 Brass Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- -1 aluminum Chemical class 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/04—Reducing; Closing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は一体成形ロールの製造法に関する。さ
らに詳しくは、塑性加工可能な材料からなる円筒
の端部に、半径方向内側にほぼ直角に延びる端面
部および円筒と同心の円筒状の小径突出部を形成
するための加工方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing an integrally formed roll. More specifically, the present invention relates to a processing method for forming, on the end of a cylinder made of a plastically workable material, an end face portion extending radially inward at a substantially right angle and a cylindrical small-diameter protrusion concentric with the cylinder.
従来、金属などの塑性加工可能な材料からなる
パイプの両端に小径の軸部を一体に成形して中空
の一体成形ロールを製造したり、金属製の有底円
筒状の容器の開口端に口部を形成するばあいな
ど、円筒の内側からは加工することができない条
件のもとで、円筒端部に半径方向内側に延びる端
面部および端面部と連続する小径突出部を同心状
に形成するばあいには、たとえば双頭ハンマなど
によるスウエージング加工法が採用されている。
ところがスウエージング加工法は金属板をたたき
ながら延ばしていく方法であるため、できあがつ
た製品の板厚が均一とならず、部分的に薄くなる
傾向がある。そのため必要な強度を確保するため
にもとのパイプあるいは容器などの板厚を必要以
上に厚くしなければならず、材料が無駄になると
いう欠点がある。 Conventionally, hollow integrally formed rolls have been manufactured by integrally molding small-diameter shaft parts at both ends of a pipe made of metal or other plastically processable material, or a hole has been molded into the open end of a metal cylindrical container with a bottom. Under conditions that cannot be processed from the inside of the cylinder, such as when forming a part, an end surface extending radially inward and a small diameter protrusion continuous with the end surface are concentrically formed at the end of the cylinder. In such cases, a swaging method using a double-headed hammer, for example, is employed.
However, since the swaging process involves rolling the metal plate while pounding it, the thickness of the finished product is not uniform and tends to be thinner in some areas. Therefore, in order to ensure the necessary strength, the original plate of the pipe or container must be made thicker than necessary, which has the disadvantage of wasting material.
そのような欠点を排除するため、とくにアルミ
ニウム合金製一体ロールを製造する方法として、
近時円筒の端部に複数回の絞り加工を施すことに
より、テーパ状の肩部、テーパ状の肩部とそれに
連なる小径部、軸線にほぼ直角の端面部と小径部
という順に順次成形していく絞り成形法が提案さ
れている（たとえば本出願人の出願にかかわる特
願昭56−188606号参照）。この方法によれば板厚
が均一に形成され、しかももとの厚さをほぼ維持
しうるという利点がある反面、円筒の直径が板厚
に比してきわめて大きい製品（たとえば板厚が
0.5〜１mmで内径が55mm以上のばあい）に対して
は適用しがたいという問題がある。すなわち絞り
成形法においては金型が円筒の軸方向に押圧され
るため、前記直径の大きい製品のばあいには端面
部５１が第７図に示されるように逆向きのテーパ
状に座屈する傾向がある。 In order to eliminate such drawbacks, especially as a method for manufacturing aluminum alloy integral rolls,
Recently, by drawing the end of a cylinder multiple times, a tapered shoulder, a tapered shoulder and a small diameter part connected to it, an end face almost perpendicular to the axis, and a small diameter part are formed in this order. A drawing method has been proposed (see, for example, Japanese Patent Application No. 188606/1988 filed by the present applicant). This method has the advantage of forming a plate with a uniform thickness and maintaining almost the original thickness.
There is a problem that it is difficult to apply to cases where the inner diameter is 0.5 to 1 mm and the inner diameter is 55 mm or more. In other words, in the drawing method, the mold is pressed in the axial direction of the cylinder, so in the case of a product with a large diameter, the end surface 51 tends to buckle in a tapered shape in the opposite direction, as shown in FIG. There is.
また特開昭49−21372号公報に示すように搾り
ローラ群を円筒端部に軸方向に押し当てて効率よ
く容器口部などを成形することも知られている。
しかしかかる方法も、軸方向に加える荷重では端
面部が座屈し、肉厚が均一にならないという問題
がある。 Furthermore, as shown in Japanese Patent Laid-Open No. 49-21372, it is also known to press a group of squeezing rollers against the cylindrical end in the axial direction to efficiently form the mouth of a container.
However, this method also has the problem that the end face buckles under the load applied in the axial direction, and the wall thickness is not uniform.
したがつて前記いずれの方法もとくに端面部５
１の平担度または端面部５１と小径突出部５２の
直角度を高くする必要がある一体成形ロールの製
造には採用することができないという欠点があ
る。 Therefore, in any of the above methods, especially the end face portion 5
This method has a disadvantage in that it cannot be used in the production of integrally formed rolls that require a high flatness of 1 or a high perpendicularity between the end surface portion 51 and the small diameter protrusion portion 52.
そこで本発明者は、前記円筒端部の加工をスピ
ニング成形により行なうことを試みたが、この方
法は以下に述べるような問題点がある。すなわち
スピニング加工においては、第８図に示されるよ
うに胴部５３を保持すると共に矢印Ｅ方向に回転
させ、ついで材料が軸方向に延ばされることを防
ぐために端部５４に回転体５５を押しあて、つい
で回転体５５を矢印Ｆ方向に押圧しながらスピニ
ング加工用工具５６を用いてくびれ部５７を形成
し、ついでくびれ部５７から切断して所望の形状
にするという煩雑な作業手順が必要になる。さら
にこの方法は切り落とされるべき部分の材料およ
びその部分に施される加工作業がまつたく無駄に
なるという欠点がある。 Therefore, the inventor of the present invention attempted to process the cylindrical end portion by spinning molding, but this method has the following problems. That is, in the spinning process, as shown in FIG. 8, the body 53 is held and rotated in the direction of arrow E, and then a rotating body 55 is pressed against the end 54 to prevent the material from being stretched in the axial direction. Then, a complicated work procedure is required in which a constriction part 57 is formed using a spinning tool 56 while pressing the rotating body 55 in the direction of arrow F, and then cutting is performed from the constriction part 57 to form the desired shape. . Furthermore, this method has the disadvantage that the material of the part to be cut off and the machining operations carried out on that part are wasted.
そこで本発明者は叙上の欠点を排除すべく鋭意
研究を重ねた結果、板厚が0.5〜１mmで、内径が
55〜85mmのアルミニウムまたはアルミニウム合金
からなる円筒の両端部にそれぞれロールの軸部を
一体に成形した一体成形ロールの製造法であつ
て、前記軸部の少なくとも一方を、軸部と同径の
小径部および截頭円錐状の肩部を有する形状に絞
り成形し、ついで該成形品を軸心まわりに回転さ
せながら小径部に軸方向の加圧力を加えつつ前記
肩部の外周近辺に先端が丸く鋭角状の押圧面を備
えたスピニング加工用工具を斜め方向に押しあ
て、さらに半径方向内側に押し込んでいくことに
より、肩部を軸線に直角の端面部および前記小径
部と連続する軸部となるようにスピニング成形す
るときは、材料および加工作業の無駄を発生させ
ることなく正確な形状に成形しうるという新たな
事実を見出し、本発明を完成するにいたつた。 Therefore, as a result of intensive research to eliminate the above-mentioned drawbacks, the inventor of the present invention found that the plate thickness is 0.5 to 1 mm and the inner diameter is
A method for manufacturing an integrally formed roll in which a shaft portion of the roll is integrally formed on both ends of a cylinder made of aluminum or aluminum alloy with a diameter of 55 to 85 mm, and at least one of the shaft portions is formed into a small diameter cylinder having the same diameter as the shaft portion. The tip is rounded near the outer periphery of the shoulder while applying pressure in the axial direction to the small diameter part while rotating the molded product around its axis. By pressing a spinning tool equipped with an acute-angled pressing surface in an oblique direction and further pushing it inward in the radial direction, the shoulder part becomes an end face part perpendicular to the axis and a shaft part that is continuous with the small diameter part. We have now discovered the new fact that spinning molding allows molding into accurate shapes without wasting materials or processing operations, leading us to complete the present invention.
つぎに図面を参照しながら本発明の加工方法を
説明する。 Next, the processing method of the present invention will be explained with reference to the drawings.
第１〜３図は本発明の方法における絞り成形工
程の一実施例を、そのステツプ順に示す概略断面
図、第４図は本発明の方法における絞り成形によ
り成形された半製品の一例を示す正面図、第５ａ
図および第５ｂ図は本発明の方法におけるスピニ
ング加工工程の一実施例を示す概略正面図、第６
図は本発明の方法により成形された成形品の一例
を示す一部切欠斜視図である。 Figures 1 to 3 are schematic sectional views showing an example of the drawing process in the method of the present invention in the order of the steps, and Figure 4 is a front view showing an example of a semi-finished product formed by drawing in the method of the present invention. Figure, 5a
Fig. 5b is a schematic front view showing an embodiment of the spinning process in the method of the present invention;
The figure is a partially cutaway perspective view showing an example of a molded product molded by the method of the present invention.
本発明の方法の最初の工程は第１〜２図に示さ
れるように絞り成形工程である。本実施例におい
ては、まず金属製のパイプ１の下端を下型２に挿
入し、ついでパイプ１の上端をなだらかなテーパ
状内壁３を有する第１の上型４により矢印Ａ方向
に押圧する。それによりパイプ１の上端は第２図
に示されるようにゆるやかなテーパ状に成形され
る。つぎに第３図に示されるように第１の上型４
の内壁３よりもテーパ角度が大きいテーパ状内壁
５および形成しようとしている小径部６と同径の
円柱面状内壁７を有する第２の上型８により絞り
成形を行ない、パイプ１の上端を第３図に示され
るような小径部６、截頭円錐状の肩部９および胴
部１０が連続している形状に成形する。本実施例
においては２回絞り加工で絞り工程を完了してい
るが、パイプ１の径と小径部６の径の比率および
板厚や材質に応じて１回の絞り加工で完了しても
よく、３回以上の絞り加工を施してもよい。すな
わち後述するスピニング加工に比して絞り加工の
加工速度が速いため、絞り加工に耐えうる範囲内
においてできるだけ最終製品に近い形状まで成形
しておくのが好ましい。たとえば肩部９の傾斜角
度（第３図のθ）は絞り加工に耐えうる範囲内
で、できるだけ大きいほうが好ましい。さらに肩
部９はなだらかな截頭円錐状にしておくのが好ま
しいが、複数回の絞り工程により、たとえば第４
図のように凹凸面を有する截頭円錐状の肩部１１
となるように成形してもよい。 The first step in the method of the present invention is a drawing step as shown in FIGS. 1-2. In this embodiment, the lower end of a metal pipe 1 is first inserted into a lower mold 2, and then the upper end of the pipe 1 is pressed in the direction of arrow A by a first upper mold 4 having a gently tapered inner wall 3. As a result, the upper end of the pipe 1 is formed into a gently tapered shape as shown in FIG. Next, as shown in FIG.
Draw forming is performed using a second upper mold 8 having a tapered inner wall 5 having a larger taper angle than the inner wall 3 of the pipe 1 and a cylindrical inner wall 7 having the same diameter as the small diameter portion 6 to be formed. The small diameter portion 6, the truncated conical shoulder portion 9, and the body portion 10 are formed into a continuous shape as shown in FIG. In this example, the drawing process is completed by two drawing processes, but it may be completed by one drawing process depending on the ratio of the diameter of the pipe 1 and the diameter of the small diameter part 6, the plate thickness, and the material. , the drawing process may be performed three or more times. That is, since the processing speed of the drawing process is faster than the spinning process described later, it is preferable to form the product into a shape as close to the final product as possible within a range that can withstand the drawing process. For example, it is preferable that the inclination angle (θ in FIG. 3) of the shoulder portion 9 be as large as possible within a range that can withstand drawing processing. Further, it is preferable that the shoulder portion 9 is formed into a gentle truncated conical shape, but due to multiple drawing processes, for example, the fourth
A truncated conical shoulder 11 with an uneven surface as shown in the figure
It may be formed so that
つぎに前記のごとく成形された半製品１２に対
し、第５ａ図および第５ｂ図のようにスピニング
加工を施す。第５ａ図および第５ｂ図において、
胴部１０はたとえば矢印Ｂ方向に回転されてお
り、小径部６に半製品１２の回転に伴なつて回転
する回転体１３が矢印Ｃ方向に押しあてられてい
る。前記截頭円錐状の肩部９の外周近辺に、鋭角
状の押圧面を備え、先端が丸くされたスピニング
加工用工具１４を斜め方向に押し当て、ついで半
径方向内側に向けて加圧し、肩部を軸線に直角の
端面部１６および前記小径部６と連続する軸部５
となるように断面〓形状に成形する。 Next, the semi-finished product 12 formed as described above is subjected to a spinning process as shown in FIGS. 5a and 5b. In Figures 5a and 5b,
The body 10 is rotated, for example, in the direction of arrow B, and a rotating body 13 that rotates as the semi-finished product 12 rotates is pressed against the small diameter portion 6 in the direction of arrow C. A spinning tool 14 having an acute-angled pressing surface and a rounded tip is pressed obliquely near the outer periphery of the truncated conical shoulder 9, and then pressure is applied radially inward to remove the shoulder. An end face part 16 whose part is perpendicular to the axis and a shaft part 5 which is continuous with the small diameter part 6.
Shape the cross section so that it becomes .
叙上の加工により、たとえば第６図に示される
ような両端に小径突出部である軸部１５ａ，１５
ｂが突出している中空の一体成形ロール１７を成
形することができる。なおこのような一体成形ロ
ール１７のばあい、両端の軸部１５ａ，１５ｂを
それぞれ本発明の方法により成形することもでき
るが、一方の軸部１５ａをあらかじめインパクト
成形などで成形したのち、他方の軸部１５ｂの成
形のみに本発明の方法を適用してもよい。 By the above-mentioned processing, the shaft portions 15a, 15, which are small-diameter protrusions at both ends as shown in FIG. 6, for example, are formed.
A hollow integrally formed roll 17 having a protruding portion b can be formed. In the case of such an integrally molded roll 17, the shaft portions 15a and 15b at both ends may be formed by the method of the present invention, but one shaft portion 15a may be formed in advance by impact molding or the like, and then the other shaft portion 15a may be formed by impact molding or the like. The method of the present invention may be applied only to forming the shaft portion 15b.
本発明の方法は、たとえばアルミニウム、アル
ミニウム合金、真ちゆうまたは銅などの延性の高
い金属の加工に対して好適に適用しうるが、塑性
加工が可能な材質からなる円筒であればいずれに
対しても適用しうる。なお本発明の方法において
は、胴部および小径部の外径、肉厚などの寸法
は、肉厚が0.5〜１mm、胴部の内径が55〜80mmで
あり、材料はアルミニウムまたはアルミニウム合
金である。また小径部の寸法はたとえば外径15〜
30mm程度である。かかる寸法および材料では、と
くに他の加工方法（スウエージング加工、スピニ
ング加工のみによる加工法など）に比して材料が
節減され、しかも成形精度が高い。 The method of the present invention can be suitably applied to the processing of highly ductile metals such as aluminum, aluminum alloys, brass, or copper, but can be applied to any cylinder made of a material that can be plastically worked. It can also be applied. In the method of the present invention, the outer diameter and wall thickness of the body and small diameter portion are 0.5 to 1 mm, the inner diameter of the body is 55 to 80 mm, and the material is aluminum or aluminum alloy. . Also, the dimensions of the small diameter part are, for example, outer diameter 15~
It is about 30mm. With such dimensions and materials, material is saved, especially compared to other processing methods (swaging processing, processing methods using only spinning processing, etc.), and the forming accuracy is high.
本発明の方法においては円筒状の素材に対して
つねに軸方向の力を加え、素材が引き延ばされる
のを抑制しながら塑性加工を施すものであるた
め、肉厚が部分的に薄くなることなく、ほぼ均一
の厚さに成形しうる。したがつて最終的に必要な
肉厚を有する素材を採用することができ、材料の
無駄がない。しかも絞り成形法とスピニング加工
法とが、それぞれの欠点をたがいに補なうよう
に、かつそれぞれの長所を生かす形で組み合わさ
れている。とくにスピニング加工では、スピニン
グ加工用工具で外側から半径方向内向きに順に加
工するので、余つてくる材料が小径部とつながる
軸部に転用され、肉厚が一層均一となる。また鋭
角状の押圧面を有し、先端が丸いスピニング加工
用工具で加工するので、スプリングバツクがない
か、あるいはスプリングバツクした後の形状が直
角になるように調節しうる。そのため本発明の方
法は肉厚が円筒の外径に比してきわめて薄い円筒
端部に対しても正確な形状に、しかも材料を無駄
にすることなく加工することができるというすぐ
れた効果を奏しうるものであり、その実用価値は
きわめて大である。 In the method of the present invention, axial force is always applied to the cylindrical material, and plastic working is performed while suppressing the material from being stretched, so the wall thickness does not become thinner in some areas. , it can be molded to a nearly uniform thickness. Therefore, it is possible to use a material having the final required wall thickness, and there is no waste of material. Moreover, the drawing method and the spinning method are combined in such a way that they compensate for each other's shortcomings and take advantage of their respective strengths. In particular, in spinning, the spinning tool is used to process from the outside inward in the radial direction, so excess material is diverted to the shaft portion that connects to the small diameter portion, making the wall thickness more uniform. Furthermore, since the spinning tool has an acute-angled pressing surface and has a round tip, it can be adjusted so that there is no spring back or the shape after spring back is at a right angle. Therefore, the method of the present invention has the excellent effect of being able to process even the end of a cylinder whose wall thickness is extremely thin compared to the outside diameter of the cylinder into an accurate shape without wasting material. Its practical value is extremely high.
第１〜３図は本発明の方法における絞り成形工
程の一実施例を、そのステツプ順に示す概略断面
図、第４図は本発明の方法における絞り成形によ
り成形された半製品の一実施例を示す正面図、第
５ａ図および第５ｂ図は本発明の方法におけるス
ピニング加工工程の一実施例を示す概略断面図、
第６図は本発明の方法により成形された成形品の
一例を示す一部切欠斜視図、第７図は従来の方法
で加工された製品の一例を示す断面図、第８図は
本発明の方法と比較するために示すスピニング加
工のみによる成形方法に関する一部切欠正面図で
ある。
（図面の主要符号）、１：パイプ、４：第１の
上型、６：小径部、８：第２の上型、９，１１：
肩部、１０：胴部、１４：スピニング加工用工
具、１５，１５ａ，１５ｂ：軸部、１６：端面
部。
Figures 1 to 3 are schematic sectional views showing an example of the drawing process in the method of the present invention in the order of steps, and Figure 4 is an example of a semi-finished product formed by drawing in the method of the present invention. The front view shown, FIGS. 5a and 5b are schematic cross-sectional views showing an embodiment of the spinning process in the method of the present invention,
FIG. 6 is a partially cutaway perspective view showing an example of a molded product formed by the method of the present invention, FIG. 7 is a sectional view showing an example of a product processed by the conventional method, and FIG. FIG. 3 is a partially cutaway front view of a forming method using only spinning processing, shown for comparison with other methods. (Main symbols in the drawing), 1: Pipe, 4: First upper mold, 6: Small diameter part, 8: Second upper mold, 9, 11:
Shoulder part, 10: Body part, 14: Spinning tool, 15, 15a, 15b: Shaft part, 16: End face part.
Claims (1)
ミニウムまたはアルミニウム合金からなる円筒の
両端部にそれぞれロールの軸部を一体に成形した
一体成形ロールの製造法であつて、前記軸部の少
なくとも一方を、軸部と同径の小径部および截頭
円錐状の肩部を有する形状に絞り成形し、ついで
該成形品を軸心まわりに回転させながら小径部に
軸方向の加圧力を加えつつ前記肩部の外周近辺に
先端が丸く鋭角状の押圧面を備えたスピニング加
工用工具を斜め方向に押しあて、さらに半径方向
内側に押し込んでいくことにより、肩部を軸線に
直角の端面部および前記小径部と連続する軸部と
なるようにスピニング成形することを特徴とする
一体成形ロールの製造法。 ２ 前記絞り成形を複数回の絞り加工により行な
い、しだいに小径部の径が小さく、かつ肩部のテ
ーパ角度が大きくなるように成形することを特徴
とする特許請求の範囲第１項記載の製造法。 ３ 前記円筒の一端にインパクト成形により軸部
を成形し、ついで他端に前記絞り成形およびスピ
ニング成形を施すことを特徴とする特許請求の範
囲第１項記載の製造法。[Scope of Claims] 1. A method for manufacturing an integrally formed roll in which a roll shaft is integrally formed at each end of a cylinder made of aluminum or aluminum alloy with a plate thickness of 0.5 to 1 mm and an inner diameter of 55 to 85 mm. Then, at least one of the shaft portions is drawn into a shape having a small diameter portion having the same diameter as the shaft portion and a truncated conical shoulder portion, and then, while rotating the molded product around the axis, a shaft is drawn into the small diameter portion. While applying pressure in this direction, a spinning tool equipped with a pressing surface with a rounded tip and an acute angle is pressed obliquely near the outer periphery of the shoulder, and further pushed inward in the radial direction, thereby removing the shoulder. 1. A method for manufacturing an integrally formed roll, characterized in that spinning is performed so that the end face part perpendicular to the axis and the shaft part are continuous with the small diameter part. 2. The manufacturing method according to claim 1, characterized in that the drawing process is performed multiple times, so that the diameter of the small diameter portion gradually becomes smaller and the taper angle of the shoulder portion becomes larger. Law. 3. The manufacturing method according to claim 1, characterized in that the shaft portion is formed at one end of the cylinder by impact molding, and then the other end is subjected to the drawing forming and spinning forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14759083A JPS6040625A (en) | 1983-08-11 | 1983-08-11 | Working method of cylinder end part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14759083A JPS6040625A (en) | 1983-08-11 | 1983-08-11 | Working method of cylinder end part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6040625A JPS6040625A (en) | 1985-03-04 |
| JPH0316206B2 true JPH0316206B2 (en) | 1991-03-05 |
Family
ID=15433788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14759083A Granted JPS6040625A (en) | 1983-08-11 | 1983-08-11 | Working method of cylinder end part |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6040625A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03226327A (en) * | 1990-01-30 | 1991-10-07 | Masanobu Nakamura | Forming method for mouth part of pressure container |
| JPH0618671B2 (en) * | 1990-08-22 | 1994-03-16 | ミツマ技研株式会社 | Crown roller manufacturing method |
| JP4592162B2 (en) * | 2000-08-02 | 2010-12-01 | 株式会社三五 | Method for forming stepped portion of metal tube |
| DE102012110792B4 (en) * | 2012-11-09 | 2016-12-01 | GFU-Gesellschaft für Umformung und Maschinenbau GmbH | Forming method for producing a stepped cross-sectional taper on a tubular metal workpiece |
| CN105057987B (en) * | 2015-08-12 | 2017-05-10 | 航天材料及工艺研究所 | Weldless aluminum alloy lining neck-spinning method for large-diameter composite air cylinder |
| CN105344787B (en) * | 2015-10-27 | 2019-06-21 | 浙江盛达铁塔有限公司 | A kind of roller closing-up machine |
| CN109622712B (en) * | 2018-12-05 | 2020-09-04 | 蓝箭航天空间科技股份有限公司 | Thrust chamber forming method for rocket engine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4921372A (en) * | 1972-06-17 | 1974-02-25 | ||
| JPS5235629A (en) * | 1975-09-12 | 1977-03-18 | Kyocera Corp | Shutted actuating device for single lens reflex camera |
| JPS5510360A (en) * | 1978-07-10 | 1980-01-24 | Hirotsune Momose | Blinding method of pipe and device thereof |
| JPS57103471A (en) * | 1980-12-17 | 1982-06-28 | Nippon Telegr & Teleph Corp <Ntt> | Processing system for facsimile encoding |
-
1983
- 1983-08-11 JP JP14759083A patent/JPS6040625A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4921372A (en) * | 1972-06-17 | 1974-02-25 | ||
| JPS5235629A (en) * | 1975-09-12 | 1977-03-18 | Kyocera Corp | Shutted actuating device for single lens reflex camera |
| JPS5510360A (en) * | 1978-07-10 | 1980-01-24 | Hirotsune Momose | Blinding method of pipe and device thereof |
| JPS57103471A (en) * | 1980-12-17 | 1982-06-28 | Nippon Telegr & Teleph Corp <Ntt> | Processing system for facsimile encoding |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6040625A (en) | 1985-03-04 |
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