JPH0255626A - Blank layout method for elbow forming use steel plate stock and elbow formed by the same steel plate stock - Google Patents
Blank layout method for elbow forming use steel plate stock and elbow formed by the same steel plate stockInfo
- Publication number
- JPH0255626A JPH0255626A JP20711088A JP20711088A JPH0255626A JP H0255626 A JPH0255626 A JP H0255626A JP 20711088 A JP20711088 A JP 20711088A JP 20711088 A JP20711088 A JP 20711088A JP H0255626 A JPH0255626 A JP H0255626A
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- plate material
- forming
- elbow
- edge
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 142
- 239000010959 steel Substances 0.000 title claims abstract description 142
- 238000000034 method Methods 0.000 title claims description 24
- 239000000463 material Substances 0.000 claims description 128
- 238000005520 cutting process Methods 0.000 claims description 23
- 210000001015 abdomen Anatomy 0.000 claims description 21
- 238000005304 joining Methods 0.000 claims description 18
- 238000005452 bending Methods 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 5
- 238000000748 compression moulding Methods 0.000 description 7
- 239000002994 raw material Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000001447 compensatory effect Effects 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
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Branch Pipes, Bends, And The Like (AREA)
- Punching Or Piercing (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、鋼板を素材としてエルボを成形するに際し・
定尺幅の鋼板からの複数′）″″″ボヤ磐用制用鋼板素
材取りが、残材の発生を最少化して著しく合理的に成さ
れるようにし、依って、使用材料の節減化並びに製造コ
ストの著減化が果たされるようにしたことを特徴とする
エルボ成形用鋼板素材の板取り方法及びこの鋼板素材に
依って成形されたエルボに関するものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention is applicable to forming an elbow using a steel plate as a raw material.
The removal of steel plate material for multiple ``bore'' production from steel plates with a fixed width can be done extremely efficiently by minimizing the generation of residual materials, thereby reducing the amount of materials used and The present invention relates to a method for cutting a steel sheet material for elbow forming, which is characterized by a significant reduction in manufacturing costs, and to an elbow formed using this steel sheet material.
（従来の技術）
エルボ成形のための手段としては、鋼管を素材として成
形する方法と、鋼板を素材として成形する方法とがある
。(Prior Art) As means for elbow forming, there are a method of forming using a steel pipe as a raw material and a method of forming using a steel plate as a raw material.
鋼管を素材とする場合は、熱間成形または冷間成形、若
しくは高周波成形等の手段に基づきエルボを成形するも
のである。When a steel pipe is used as the material, the elbow is formed by means such as hot forming, cold forming, or high frequency forming.
そして、鋼板を素材とする場合は、定尺幅の鋼板から、
エルボ成形用鋼板素材を板取りし、然る後、所定の成形
型を用いて圧搾成形してエルボを完成化するものである
。If steel plate is used as the material, from a steel plate of standard width,
A steel plate material for elbow forming is cut out, and then compression molded using a predetermined mold to complete the elbow.
（発明が解決しようとする問題点） する場合は、使用材料の無駄性は生じない。(Problem to be solved by the invention) In this case, there is no waste of materials used.
合、第５図に示すように、定尺鋼板Ａに対し、所要エル
ボの展開形状と等しい形状を呈するエルボ三角形状の残
材Ｃが生じることを余儀なくされ、その歩留まりが極め
て悪いものとされた。In this case, as shown in Fig. 5, an elbow triangular residual material C having the same shape as the required unfolded elbow was produced for the regular length steel plate A, and the yield was extremely poor. .
そして、近年に於いては、エルボの成形用材料として、
高価なステンレス鋼板が多用されているため、このよう
な使用材料の歩留まりの悪さは、製品価格の高騰化に直
結することを余儀なくされた。In recent years, as a material for molding elbows,
Since expensive stainless steel sheets are often used, the poor yield of the materials used has been directly linked to a rise in product prices.
本発明は、従来、上述したような鋼板を素材として１ル
ポをｔｔする場合に生じた問題点０解決化を図ることを
目的とするものである。The object of the present invention is to eliminate the problems that have conventionally occurred when producing one report using steel plates as described above.
（問題点を解決するための手段）
上記した目的を達成するために、本発明に係るエルボ成
形用鋼板素材の板取り方法は、横幅をエルボ成形用鋼板
素材の横幅と合致させて成る定尺幅の鋼板１を用い、当
該鋼板１に対し、従来のエルボ成形用鋼板素材Ｂから一
方の曲げ腹部形成用縁部Ｃ寄り部分を縦方向に裁断除去
した形状を呈するエルボ成形用主鋼板素材２と、当該主
鋼板素材２の裁断除去した部分に該当する形状を呈する
エルボ成形用従鋼板素材３とを、その互いの曲げ腹部形
成用縁部ｃ、ｃ部分を対向させた状態で配設し、また、
上記主鋼板素材２と従鋼板素材３に於ける前記鋼板１の
辺縁側を接合用端縁２ａ 、 ３ａとし、更に、主鋼板
素材２と従鋼板素材３との上記対向形態を左右逆転させ
たものを互いに隣接させた状態で、定尺幅の鋼板１の長
手方向に交互にかつ多段的に配設し、当該各段の互いの
隣接形態を、対向する主鋼板素材２と従鋼板素材３に於
ける曲げ腹部形成用縁部Ｃ，Ｃ部分寄りの上端開口面部
分形成用縁部ａ、ａまたは下端開口面部分形成用縁部す
、ｂが共同して描く凹状弧縁に、これと隣接する段部の
主鋼板素材２に於けると端開口面部分形成用縁部ａまた
は下端開口面部分形成用縁部すが描く凸状弧縁を突入さ
せて隣接し、当該主鋼板素材２と従鋼板素材３とを、上
記のような多段的配設状態において鋼板１から板取りし
たことを特徴とするものである。(Means for Solving the Problems) In order to achieve the above-mentioned object, the method for cutting a steel plate material for elbow forming according to the present invention provides a standard cutting method in which the width is matched with the width of the steel plate material for elbow forming. A main steel plate material 2 for elbow forming has a shape obtained by vertically cutting and removing a portion near the edge C for forming one bent abdomen from a conventional steel plate material B for elbow forming. and a secondary steel plate material 3 for elbow forming, which has a shape corresponding to the cut and removed portion of the main steel plate material 2, are arranged with their bending abdomen forming edges c and c portions facing each other. ,Also,
The edges of the steel plate 1 of the main steel plate material 2 and the secondary steel plate material 3 are used as joining edges 2a and 3a, and furthermore, the facing configuration of the main steel plate material 2 and the secondary steel plate material 3 is reversed left and right. The objects are arranged adjacent to each other alternately and in multiple stages in the longitudinal direction of the steel plates 1 having a fixed width, and the mutual adjacency form of each stage is defined as the main steel plate material 2 and the secondary steel plate material 3 facing each other. The bent abdomen forming edges C, the upper end opening surface portion forming edges a, a or the lower end opening surface portion forming edges S, b near the C portion jointly draw a concave arc edge. In the main steel plate material 2 of the adjacent stepped section, the convex arc edge drawn by the edge a for forming the end opening surface part or the edge for forming the lower end opening surface part protrudes and adjoins the main steel plate material 2. This is characterized in that the steel plate material 3 and the secondary steel plate material 3 are cut out from the steel plate 1 in the multi-stage arrangement state as described above.
そして、本発明に係るエルボは、従来の鋼板素材Ｂから
一方の曲げ腹部形成用縁部Ｃ寄り部分を縦方向に裁断除
去した形状を呈する主鋼板素材２と、当該裁断除去され
た部分に該当する形状を呈するエルボ成形用従鋼板素材
３とを、両者の上記裁断該当縁に形成した接合用端縁２
ａ 、 ３ａにおいて成形したことを特徴とするもので
ある。The elbow according to the present invention includes a main steel plate material 2 having a shape obtained by cutting and removing a portion near the edge C for forming one bent abdomen in the longitudinal direction from a conventional steel plate material B, and corresponding to the cut and removed portion. A joining edge 2 formed on the above-mentioned cut edge of both of the steel plate material 3 for elbow forming having a shape of
It is characterized by being molded in 3a and 3a.
（作用）
上記した本発明に係る方法に基づき板取りされたエルボ
成形用主鋼板素材２と、エルボ成形用従鋼板素材３とは
、その互いの接合用端縁２ａ、３ａを溶着して連結し、
然る後、公知の圧搾成形処理をれたエルボは、第２図及
び第３図に示すように、通常のエルボに形成される曲げ
腹部形成用縁部Ｃ１Ｃ部分の溶着部Ｐ以外に、上記した
接合用端縁２ａ、３ａの溶着部Ｑがその表面に形成され
ることとなる。 然し乍、当該溶着部Ｑの存在は、エル
ボとしての実使用上、何ら問題を生じ得ないものである
。(Function) The main steel plate material 2 for elbow forming and the secondary steel plate material 3 for elbow forming, which are plated based on the method according to the present invention described above, are connected by welding their joining edges 2a and 3a. death,
Thereafter, as shown in FIGS. 2 and 3, the elbow that has been subjected to the known compression molding process has the above-mentioned welded part P of the bent abdomen forming edge C1C formed in a normal elbow. A welded portion Q of the joining edges 2a, 3a is formed on the surface thereof. However, the presence of the welded portion Q does not cause any problem in actual use as an elbow.
（実施例）
本発明の実施例を図面について詳細に説明すれば次の通
りである。(Example) An example of the present invention will be described in detail with reference to the drawings as follows.
先ず第４図であるが、これは、定尺幅の鋼板から板取り
した従来の鋼板素材Ｂを表したものである。 同図に於
いて、ａはエルボの上端開口面部分形成用縁部、ｂはエ
ルボの下端開口面部分形成用縁部、ｃ、ｃはエルボの曲
げ腹部形成用縁部、ｄはエルボの曲げ背部形成用部を示
す。First, FIG. 4 shows a conventional steel plate material B cut from a steel plate having a fixed width. In the figure, a is the edge for forming the upper end opening surface of the elbow, b is the edge for forming the lower end opening surface of the elbow, c and c are the edges for forming the bent abdomen of the elbow, and d is the bending edge of the elbow. The part for forming the back is shown.
そして、当該エルボ成形用鋼板素材Ｂは、所定の型を用
い、その左右の曲げ腹部形成用縁部ｃ、ｃ側を合致させ
るような湾曲的圧搾成形処理を施し、然る後、合致させ
た当該曲げ腹部形成用縁部ｃ、ｃ部分を溶接することに
依ってエルボを完成化するものである。Then, the steel plate material B for elbow forming was subjected to a curved compression forming process using a predetermined mold so that the left and right curved abdomen forming edges c and c sides were matched, and then they were made to match. The elbow is completed by welding the edges c and c for forming the bent abdomen.
本発明に係るエルボ成形用鋼板素材の板取り方法は、定
尺幅の鋼板からの上記したような鋼板素材の複数枚の板
取りが、残材発生を最少化して極めて合理的に成される
ようにしたものである。The method for cutting a steel sheet material for elbow forming according to the present invention allows cutting of multiple sheets of steel sheet material as described above from a steel plate of a fixed width to be performed extremely rationally by minimizing the generation of residual material. This is how it was done.
以下、本発明に係る方法の具体的実施例を図面について
詳細に説明する。Hereinafter, specific embodiments of the method according to the present invention will be described in detail with reference to the drawings.
第１図は本発明に係る方法に基づくエルボ成形用鋼板素
材の板取り形態を具体的に示したものである。FIG. 1 specifically shows the cutting form of a steel plate material for elbow forming based on the method according to the present invention.
第１図に於いて、１は横幅をエルボ成形用鋼板素材の横
幅と合致させて成る定尺幅の鋼板であって、複数のエル
ボ成形用鋼板素材を連続状に板取りするための材料であ
る。In Fig. 1, 1 is a steel plate with a fixed width whose width matches the width of the steel plate material for elbow forming, and is a material for continuous cutting of a plurality of steel plate materials for elbow forming. be.
そして、本発明に係る方法に基づく鋼板１に対するエル
ボ成形用鋼板素材の板取り形態であるが、これは下記の
ような配設形態で成すものである。The shape of the steel plate material for elbow forming in the steel plate 1 based on the method according to the present invention is shown in the following arrangement.
２はエルボ成形用主鋼板素材であって、当該主鋼板素材
２は、前述したような第４図に示す従来の鋼板素材Ｂか
ら、一方の曲げ腹部形成用縁部Ｃ寄り部分を縦方向に裁
断除去した形状を呈するものである。 ３はエルボ成形
用従鋼板素材であって、当該主鋼板素材３は、上記した
主鋼板素材２の裁断除去した部分に該当する形状を呈す
るものである。 そして、当該主鋼板素材２と原鋼板素
材３とは、その互いの曲げ腹部形成用縁部Ｃ，Ｃ部分を
対向させた状態で配設しである。Reference numeral 2 is a main steel plate material for elbow forming, and the main steel plate material 2 is a conventional steel plate material B shown in FIG. It has a shape that has been cut and removed. 3 is a secondary steel plate material for elbow forming, and the main steel plate material 3 has a shape corresponding to the cut and removed portion of the main steel plate material 2 described above. The main steel sheet material 2 and the raw steel sheet material 3 are arranged with their respective bending abdomen forming edges C and C facing each other.
更に、上記主鋼板素材２と原鋼板素材３に於ける前記鋼
板１の辺縁側は、接合用端縁２ａ 、 ３ａとしてあり
、当該接合用端縁２ａ、３ａを互いに溶着して両肩板素
材２．３を接合することに依り、前記した従来の鋼板素
材Ｂと同一の鋼板素材が形成されるように成っている。Furthermore, the edge sides of the steel plate 1 in the main steel plate material 2 and the raw steel plate material 3 have joining edges 2a and 3a, and the joining edges 2a and 3a are welded to each other to form both shoulder plate materials. By joining 2.3, the same steel sheet material as the conventional steel sheet material B described above is formed.
本発明に係る方法にあっては、上記のように対向配設し
た主鋼板素材２と従銅板素材３とを第１段とし、当該対
向配設形態を左右に逆転した形態の主鋼板素材２と原鋼
板素材３とを第２段とするようにし、当該左右が逆の形
態のものを互いに隣接させた状態で、定尺幅の鋼板１の
長手方向に交互に配設して板取りするようにしたもので
ある。In the method according to the present invention, the main steel sheet material 2 and the secondary copper sheet material 3 arranged oppositely as described above are used as the first stage, and the main steel sheet material 2 is arranged in a manner in which the facing arrangement is reversed left and right. and the raw steel sheet material 3 as the second stage, and with the left and right opposite shapes adjacent to each other, they are arranged alternately in the longitudinal direction of the steel sheet 1 of a fixed width to perform board cutting. This is how it was done.
換言すると、例えば主鋼板素材２を右方側に位置させた
ものを第１段とし、主鋼板素材２を左方側に位置させた
ものを第２段とするように配設した場合、奇数段のもの
は主鋼板素材２が右方側に位置され、偶数段のものは主
鋼板素材２が左方側に位置されるような、交互的配設形
態が採られるわけである。In other words, if the arrangement is such that, for example, the main steel plate material 2 is located on the right side as the first stage, and the main steel plate material 2 is located on the left side as the second stage, the odd number In the case of tiers, the main steel plate material 2 is located on the right side, and in the case of even-numbered tiers, the main steel plate material 2 is located on the left side, so that an alternate arrangement is adopted.
そして、上記した各段の互いの隣接形態であるが、これ
は、対向する主鋼板素材２と原鋼板素材３に於ける曲げ
腹部形成用縁部ｃ、ｃ部分寄りの北端開口面部分形成用
縁部ａ、ａまたは下端開口面部分形成用縁部す、ｂが共
同して描く凹状弧縁に、これと隣接する段部の主鋼板素
材２に於ける上端開口面部分形成用縁部ａまたは下端開
口面部分形成用縁部すが描く凸状弧縁を突入隣接させて
板取りするような形態となっている。The adjoining forms of the above-mentioned stages are for forming the bending abdomen forming edge c of the opposing main steel sheet material 2 and raw steel sheet material 3, and for forming the northern end opening surface portion near the c portion. On the concave arc edge jointly drawn by the edges a, a or the edges S, b for forming the lower end opening surface portion, the edge a for forming the upper end opening surface portion of the main steel plate material 2 of the step adjacent thereto. Alternatively, the convex arc edge drawn by the edge portion for forming the lower end opening surface portion is made to protrude and adjoin, and the plate is cut out.
以上のように主鋼板素材２と原鋼板素材３とを隙間無く
隣接させて板取りすることに依り、当該板取りに伴う残
材発生が最少化されることとなる。As described above, by cutting the main steel sheet material 2 and the raw steel sheet material 3 so that they are adjacent to each other without any gap, the generation of residual material due to the sheet cutting can be minimized.
次に、前記のようにして板取りされたエルボ成形用主鋼
板素材２と原鋼板素材３であるが、これは互いの接合用
端縁２ａ、３ａを溶接等に基づき接合して、既述した従
来の鋼板素材Ｂと同一の形状？呈する鋼板素材に形成す
る。Next, the main steel sheet material 2 for elbow forming and the raw steel sheet material 3, which have been cut out as described above, are joined by welding the joining edges 2a and 3a of each other, as described above. Is it the same shape as the conventional steel sheet material B? Formed on a steel plate material that exhibits
このような接合状態にあるエルボ成形用鋼板素材に対し
、所定の成形型を用いた公知の圧搾成形処理を施すこと
に依り、第２図及び第３図に示すようなエルボが完成化
される。By subjecting the steel plate material for elbow forming in such a joined state to a known compression molding process using a predetermined mold, an elbow as shown in FIGS. 2 and 3 is completed. .
同図に於いて、Ｐは主鋼板素材２と原鋼板素材３に於け
る曲げ腹部形成用縁部ｃ、ｃ部分の溶着部、Ｑは主鋼板
素材２と原鋼板素材３に於ける接合用端縁２ａ 、 ３
ａの溶着部である。In the figure, P is the welded part of the bending abdomen forming edge c and c of the main steel plate material 2 and the raw steel plate material 3, and Q is the welding part of the main steel plate material 2 and the raw steel plate material 3 for joining. Edges 2a, 3
This is the welded part of a.
本発明に係るエルボは、第２図及び第３図に示すような
構成、すなわち上記したように、従来の鋼板素材Ｂから
一方の曲げ腹部形成用縁部Ｃ寄り部分を縦方向に裁断除
去した形状を呈する主鋼板素材２と、当該裁断除去され
た部分に該当する形状を呈するエルボ成形用完調板素材
３とを、両者の上記裁断該当縁に形成した接合用端縁２
ａ、３ａにて圧搾成形してエルボを構成したものである
。The elbow according to the present invention has a configuration as shown in FIGS. 2 and 3, that is, as described above, the portion closer to the edge C for forming one bending abdomen is cut and removed from the conventional steel sheet material B in the longitudinal direction. A joining edge 2 in which a main steel plate material 2 exhibiting a shape and a perfected plate material 3 for elbow forming having a shape corresponding to the cut and removed portion are formed at the cut edges of both.
The elbow is formed by compression molding in a and 3a.
尚、上述したした圧搾成形処理であるが、これは所定の
金型を用いて段階的にに行われるものである。 そして
、当該圧搾成形処理については、従来、各種の方法があ
り（例えば、特公昭３５−８４７４号、特公昭３５−８
４７５号、特公昭３５−１５００８号、特公昭４４−５
３１１号、特公昭４６−３０５８２号の各公報に記載さ
れた方法）、本発明にあっては、当該圧搾成形処理は、
従来の圧搾成形手段の何れのものを採用しても良い。The above-mentioned compression molding process is performed in stages using a predetermined mold. Conventionally, there are various methods for the compression molding process (for example, Japanese Patent Publication No. 35-8474, Japanese Patent Publication No. 35-8
No. 475, Special Publication No. 35-15008, Special Publication No. 44-5
311 and Japanese Patent Publication No. 46-30582), in the present invention, the compression molding treatment is
Any conventional compression molding means may be employed.
（発明の効果）
本発明に係るエルボ成形用鋼板素材の板取り方法は、従
来のエルボ成形用鋼板素材Ｂから一方の曲げ腹部形成用
縁部Ｃ寄り部分を縦方向に裁断除去した形状を呈するエ
ルボ成形用主鋼板素材２と、当該主鋼板素材２の裁断除
去した部分に該当する形状を呈するエルボ成形用完調板
素材３とを、その互いの曲げ腹部形成用縁部ｃ、ｃ部分
を対向させた状態で配設し、また、上記主鋼板素材２と
原鋼板素材３に於ける下記する鋼板１の辺縁側を接合用
端縁２ａ、３ａとし、更に、主鋼板素材２と原鋼板素材
３との上記対向形態を左右逆転させたものを互いに隣接
させた状態で、定尺幅の鋼板１の長手方向に交互にかつ
多段的に配設して板取りするように成したから、当該板
取りに基づく残材の発生を著しく減少化することとなる
。 従って、使用材料の節減化に基づき、製品価格の著
しい廉価性が図られることとなる。(Effects of the Invention) The method for cutting a steel sheet material for elbow forming according to the present invention has a shape in which a portion nearer to the edge C for forming the bent abdomen is vertically cut and removed from a conventional steel sheet material B for elbow forming. The main steel plate material 2 for elbow forming and the finished plate material 3 for elbow forming, which has a shape corresponding to the cut and removed portion of the main steel plate material 2, are bent and their respective edges c and c portions for forming the abdomen are bent. The main steel sheet material 2 and the raw steel sheet material 3 are arranged in a state where they face each other, and the edge sides of the steel sheet 1 described below in the main steel sheet material 2 and the raw steel sheet material 3 are used as joining edges 2a and 3a, and furthermore, the main steel sheet material 2 and the raw steel sheet material Since the above-mentioned facing form with the material 3 is left and right reversed and placed adjacent to each other, they are arranged alternately and in multiple stages in the longitudinal direction of the steel plate 1 of a fixed width to perform board cutting. This will significantly reduce the amount of leftover material generated from the planking. Therefore, by reducing the amount of materials used, the product price can be significantly reduced.
すなわち、第５図に示すような従来の板取り方法である
と、定尺鋼板Ａに対し、所要エルボの展開形状と等しい
形状を呈するエルボ成形用鋼板素材Ｂを連続状に打ち抜
いて形成するため、同図に示すように、打ち抜いた素材
と素材の間に三角形状の残材Ｃが生じることを余儀なく
され、その歩留まりが極めて悪いものとされが、本発明
に係る方法に依れば、このような三角形状の残材Ｃは全
く生じないため、使用材料の節減化目的が達成されるわ
けである。In other words, in the conventional sheet cutting method as shown in FIG. 5, a steel plate material B for elbow forming, which has a shape equal to the developed shape of the required elbow, is continuously punched out from a fixed length steel plate A. As shown in the figure, a triangular residual material C is inevitably formed between the punched materials and the yield is extremely poor, but the method according to the present invention can eliminate this problem. Since such a triangular residual material C is not generated at all, the purpose of reducing the amount of materials used is achieved.
そして、本発明に係るエルボは、従来の鋼板素材Ｂから
一方の曲げ腹部形成用縁部Ｃ寄り部分を縦方向に裁断除
去した形状を呈する主鋼板素材２と、当該裁断除去され
た部分に該当する形状を呈するエルボ成形用完調板素材
３とを、両者の上記裁断該当縁に形成した接合用端縁２
ａ 、 ３ａにおいて成形してエルボをＦＷするように
成したから、前記した本発明に係る板取り方法の採用が
許容化され、上記のような使用材料の節減化が果たされ
ることとなる。 そして、接合用端縁２ａ 、 ３ａに
対する溶着部分の存在は、エルボの実使用上において、
何ら障害とならないため、当該溶着部分の存在が上記し
た使用材料の節減化効果を挙げるための代償的マイナス
要因となることがない。The elbow according to the present invention includes a main steel plate material 2 having a shape obtained by cutting and removing a portion near the edge C for forming one bent abdomen in the longitudinal direction from a conventional steel plate material B, and corresponding to the cut and removed portion. A joining edge 2 formed on the above-mentioned cutting edge of both of the finished elbow forming plate material 3 having a shape of
Since the elbow is formed to be FW in steps a and 3a, it is possible to employ the above-mentioned board cutting method according to the present invention, and the above-mentioned reduction in the amount of materials used can be achieved. The presence of welded parts to the joining edges 2a and 3a makes it difficult to use the elbow in actual use.
Since it does not pose any problem, the presence of the welded portion does not become a compensatory negative factor for achieving the above-mentioned effect of reducing the amount of materials used.
図は本発明の一実施例を示すものであって、第１図は本
発明に係る方法に基づく板取り形態を示す平面図、第２
図及び第３図は本発明に係る方法祖国、第３図は側方か
ら見た斜視図、第４図は従来のエルボ成形用鋼板素材Ｂ
を示す平面図、第５図はエルボ成形用鋼板素材の板取り
方法の従来例を示す平面図である。
ｌ・・・定尺幅の鋼板
２・・・エルボ成形用主鋼板素材
３・・・エルボ成形用完調板素材
２ａ 、 ３ａ・・・接合用端縁
ａ・・・エルボの上端開口面部分形成用縁部ｂ・・・エ
ルボの下端開口面部分形成用縁部Ｃ，Ｃ・・・エルボの
曲げ腹部形成用縁部ｄ・・・エルボの曲げ背部形成用部
Ｐ・・・曲げ腹部形成用縁部部分の溶着部Ｑ・・・接合
用端縁部分の溶着部
Ａ・・・定尺幅の鋼板 Ｂ・・・従来の鋼板素材第
２図
第３図
第４図The figures show one embodiment of the present invention, and FIG.
Figures 3 and 3 show the method according to the present invention, Figure 3 is a perspective view seen from the side, and Figure 4 is a conventional steel plate material B for elbow forming.
FIG. 5 is a plan view showing a conventional method for cutting a steel plate material for elbow forming. l...Steel plate of standard width 2...Main steel plate material for elbow forming 3...Complete plate material for elbow forming 2a, 3a...Joining edge a...Upper end opening surface portion of elbow Forming edge b... Edge for forming the lower end opening surface of the elbow C, C... Edge for forming the bending abdomen of the elbow d... Part for forming the bending back of the elbow P... Forming the bending abdomen Welded part Q of the edge part for joining... Welded part A of the edge part for joining... Steel plate of standard width B... Conventional steel plate material Fig. 2 Fig. 3 Fig. 4
Claims (2)
成る定尺幅の鋼板１を用い、当該鋼板１に対し、従来の
エルボ成形用鋼板素材Ｂから一方の曲げ腹部形成用縁部
ｃ寄り部分を縦方向に裁断除去した形状を呈するエルボ
成形用主鋼板素材２と、当該主鋼板素材２の裁断除去し
た部分に該当する形状を呈するエルボ成形用従鋼板素材
３とを、その互いの曲げ腹部形成用縁部ｃ、ｃ部分を対
向させた状態で配設し、また、上記主鋼板素材２と従鋼
板素材３に於ける前記鋼板１の辺縁側を接合用端縁２ａ
、３ａとし、更に、主鋼板素材２と従鋼板素材３との上
記対向形態を左右逆転させたものを互いに隣接させた状
態で、定尺幅の鋼板１の長手方向に交互にかつ多段的に
配設し、当該各段の互いの隣接形態を、対向する主鋼板
素材２と従鋼板素材３に於ける曲げ腹部形成用縁部ｃ、
ｃ部分寄りの上端開口面部分形成用縁部ａ、ａまたは下
端開口面部分形成用縁部ｂ、ｂが共同して描く凹状弧縁
に、これと隣接する段部の主鋼板素材２に於ける上端開
口面部分形成用縁部ａまたは下端開口面部分形成用縁部
ｂが描く凸状弧縁を突入させて隣接し、当該主鋼板素材
２と従鋼板素材３とを、上記のような多段的配設状態に
おいて鋼板１から板取りすることを特徴とするエルボ成
形用鋼板素材の板取り方法。(1) Using a steel plate 1 with a standard width whose width matches the width of the steel plate material for elbow forming, one bending abdomen forming edge c is obtained from the conventional steel plate material B for elbow forming with respect to the steel plate 1. A main steel plate material 2 for elbow forming, which has a shape obtained by cutting and removing the edge portion in the longitudinal direction, and a secondary steel plate material 3, which has a shape corresponding to the cut and removed portion of the main steel plate material 2, are separated from each other. The edges c and c portions for forming the bent abdomen are arranged in a state where they are opposed to each other, and the edge sides of the steel plate 1 in the main steel plate material 2 and the secondary steel plate material 3 are connected to the joining edge 2a.
, 3a, and furthermore, the main steel plate material 2 and the secondary steel plate material 3, which are left and right reversed, are placed adjacent to each other, alternately and in multiple stages in the longitudinal direction of the steel plate 1 having a fixed width. The mutual adjacency form of each stage is determined by the bending abdomen forming edge c of the opposing main steel plate material 2 and secondary steel plate material 3,
At the concave arc edge jointly drawn by the upper end opening surface portion forming edges a, a or the lower end opening surface portion forming edges b, b near the part c, on the main steel plate material 2 of the step adjacent to this. The convex arc edge drawn by the upper end opening surface portion forming edge a or the lower end opening surface portion forming edge b of A method for cutting a steel plate material for elbow forming, characterized by cutting a steel plate 1 in a multi-stage arrangement state.
ｃ寄り部分を縦方向に裁断除去した形状を呈する主鋼板
素材２と、当該裁断除去された部分に該当する形状を呈
するエルボ成形用従鋼板素材３とを、両者の上記裁断該
当縁に形成した接合用端縁２ａ、３ａにおいて溶着して
成るエルボ成形用鋼板素材を用いて圧搾成形して成るエ
ルボ。(2) A main steel plate material 2 having a shape obtained by cutting and removing a portion closer to the edge c for forming one bent abdomen in the longitudinal direction from a conventional steel plate material B, and an elbow forming having a shape corresponding to the cut and removed portion. This elbow is press-formed using a steel plate material for elbow forming, which is formed by welding a subordinate steel plate material 3 at the joining edges 2a, 3a formed at the corresponding edges of the cut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20711088A JPH0255626A (en) | 1988-08-20 | 1988-08-20 | Blank layout method for elbow forming use steel plate stock and elbow formed by the same steel plate stock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20711088A JPH0255626A (en) | 1988-08-20 | 1988-08-20 | Blank layout method for elbow forming use steel plate stock and elbow formed by the same steel plate stock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0255626A true JPH0255626A (en) | 1990-02-26 |
| JPH0356125B2 JPH0356125B2 (en) | 1991-08-27 |
Family
ID=16534365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20711088A Granted JPH0255626A (en) | 1988-08-20 | 1988-08-20 | Blank layout method for elbow forming use steel plate stock and elbow formed by the same steel plate stock |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0255626A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04354372A (en) * | 1991-05-31 | 1992-12-08 | Fuji Xerox Co Ltd | Manufacture of electronic device |
| CN108889829A (en) * | 2018-06-14 | 2018-11-27 | 武汉宝钢华中贸易有限公司 | Automobile board uncoiling blanking technique |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5586632A (en) * | 1978-12-23 | 1980-06-30 | Hirata Press Kogyo Kk | Production of annular disc made of metal plate |
| JPS6284998A (en) * | 1985-07-01 | 1987-04-18 | フラネック・コンサルタンシー・リミテッド | Method and device for cutting wide web material |
-
1988
- 1988-08-20 JP JP20711088A patent/JPH0255626A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5586632A (en) * | 1978-12-23 | 1980-06-30 | Hirata Press Kogyo Kk | Production of annular disc made of metal plate |
| JPS6284998A (en) * | 1985-07-01 | 1987-04-18 | フラネック・コンサルタンシー・リミテッド | Method and device for cutting wide web material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04354372A (en) * | 1991-05-31 | 1992-12-08 | Fuji Xerox Co Ltd | Manufacture of electronic device |
| CN108889829A (en) * | 2018-06-14 | 2018-11-27 | 武汉宝钢华中贸易有限公司 | Automobile board uncoiling blanking technique |
| CN108889829B (en) * | 2018-06-14 | 2019-09-24 | 武汉宝钢华中贸易有限公司 | Automobile board uncoiling blanking technique |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0356125B2 (en) | 1991-08-27 |
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