JP2760087B2 - Cutting method of cylindrical work - Google Patents
Cutting method of cylindrical workInfo
- Publication number
- JP2760087B2 JP2760087B2 JP1259785A JP25978589A JP2760087B2 JP 2760087 B2 JP2760087 B2 JP 2760087B2 JP 1259785 A JP1259785 A JP 1259785A JP 25978589 A JP25978589 A JP 25978589A JP 2760087 B2 JP2760087 B2 JP 2760087B2
- Authority
- JP
- Japan
- Prior art keywords
- cutting
- weld
- rough
- welded
- welded portion
- 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
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- Milling, Broaching, Filing, Reaming, And Others (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、ロードホイールリムに代表されるような円
筒状ワークの切削加工方法に関し、さらに詳しくは異形
断面鋼板をコイリングして溶接してなる円筒状ワークの
溶接部に切削加工を施す方法に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for cutting a cylindrical work typified by a road wheel rim, and more particularly, to a cylindrical shape obtained by coiling and welding a steel plate having an irregular cross section. The present invention relates to a method for performing a cutting process on a welded portion of a work.
従来の技術 鋼板製のロードホイールリムの製造方法においては、
第４図に示すように矩形状の鋼板を素材Ｐとして用い、
コイリング→溶接（フラッシュバットまたはDCバット溶
接）→トリマー加工→サイドカット加工の各工程を経る
ことによりロードホイールリムの粗形状である円筒状の
ワークＷがつくり出され、以降はロール成形工程へと送
られる（例えば、「自動車工学全書19巻自動車の製造
法」，（昭55.4.20），山海堂,P156）。2. Description of the Related Art In a method of manufacturing a road wheel rim made of a steel plate,
As shown in FIG. 4, a rectangular steel plate is used as the material P,
Through the steps of coiling → welding (flash butt or DC butt welding) → trimmer processing → side cut processing, a cylindrical work W, which is the rough shape of the road wheel rim, is created. (For example, "Automotive Engineering Book 19, Manufacturing Method of Automobiles", (Showa 55.4.20), Sankaido, P156).
上記のトリマー加工は、フラッシュバット溶接または
DCバット溶接によって生じた溶接部の溶接ビード部の切
削除去を目的としたもので、第５図に示すように溶接部
Wzの両側を上下一対のクランパー51,52で加工拘束した
上、溶接部Wzをはさんでその上下に対向配置した荒削り
バイト53,53および仕上げバイト54,54に溶接部Wzの長手
方向の送りｆを与えることで切削を行うようにしたもの
である。The above trimmer processing can be performed by flash butt welding or
The purpose of this is to remove the weld bead from the weld generated by DC butt welding.
Both sides of Wz are processed and restrained by a pair of upper and lower clampers 51, 52, and the longitudinal direction of the welded part Wz is sent to the rough cutting tools 53, 53 and the finishing tools 54, 54, which are placed on the upper and lower sides of the welded part Wz. The cutting is performed by giving f.
またサイドカット加工は、上記のトリマー加工を行っ
てもなおも溶接部Wzの両端面には溶接ビード部がばりＦ
として残るので、このばりＦの切断除去を目的として行
われるものである。Further, in the side cut processing, even if the above-described trimmer processing is performed, the weld bead portions are still formed on both end surfaces of the welded portion Wz.
Therefore, the flash F is cut and removed.
ところで、ロードホイールリムの強度を維持しつつそ
の軽量化を図るために上記の一般的な鋼板に代えて異形
断面の圧延鋼板が用いられることがある。この異形断面
鋼板Paは第６図および第７図に示すように、板幅方向の
中央部をその片面側から局部的に薄肉化したもので、ロ
ードホイールリムＲに適用した場合、耳部ｅの板厚を相
対的に大きく確保してリム剛性の向上に寄与できると同
時に、センタードロップ部CD近傍の板厚ｔを約20％軽減
でき、全体としても５〜10％の軽量化が図れることが確
認されている。By the way, in order to reduce the weight of the road wheel rim while maintaining the strength, a rolled steel plate having an irregular cross section may be used instead of the above general steel plate. As shown in FIGS. 6 and 7, the deformed cross-section steel plate Pa has a central portion in the plate width direction locally thinned from one side thereof. At the same time the thickness of the can contribute to the improvement of the rim rigidity to ensure relatively large, it can reduce the center drop portion C D near the plate thickness t of about 20%, even attained is 5-10% weight reduction as a whole That has been confirmed.
ここで、第６図の異形断面鋼板Paの基準板厚Toを2.0
〜5.0mmとしたとき、板厚方向の両端部に1.1〜1.3Toの
厚肉部Ｅ（ｌ＝20〜50mm）を残して中央部に向かって肉
厚を漸次小さくし、薄肉部Ｑのうち最も肉厚の小さい最
小肉厚部Pcでは0.7〜0.8Toとなるように設定する。Here, the reference thickness T o of the modified cross-section steel Pa of FIG. 6 2.0
When the ～5.0Mm, gradually decreasing the thickness toward the center, leaving a thick portion E of 1.1～1.3T o the both ends in the thickness direction (l = 20~50mm), the thin portion Q among the most thick small minimum thickness portion Pc set to be 0.7~0.8T o.
発明が解決しようとする課題 上記のような異形断面鋼板Paを用いて第８図（Ａ），
（Ｂ）に示すように薄肉部Ｑを外周面側にしてコイルリ
ングを行った上で溶接を行うと、溶接部Wzの両端部が熱
歪みのために矢印ａ方向に変形する。なお、第８図
（Ｂ），（Ｃ），（Ｄ）に符号Beで示す斜線部は、フラ
ッシュバット溶接またはDCバット溶接によって生じた溶
接ビード部を示す。Problems to be Solved by the Invention FIG. 8 (A)
As shown in (B), when welding is performed after coiling is performed with the thin portion Q on the outer peripheral surface side, both ends of the welded portion Wz are deformed in the direction of arrow a due to thermal distortion. 8 (B), 8 (C), and 8 (D), a hatched portion indicated by a symbol Be indicates a weld bead portion generated by flash butt welding or DC butt welding.
そして、溶接部Wzの両側を第５図および第８図
（Ｃ），（Ｄ）に示すようにクランパー51,52で加工拘
束した上で荒削りバイト53,53および仕上げバイト54,54
により切削を行うと、クランパー51,52の拘束力のため
に溶接部Wzの長手方向中央部が外側に向かって膨出する
ために、溶接部Wzの表裏両面は互いに平行に切削される
ものの内周面側には第８図（Ｅ）に示すように削り残し
部Feが発生する。その結果、トリマー加工終了後にクラ
ンパー51,52による拘束力を解除すると第８図（Ｆ）に
示すように溶接部Wzの復元力によって溶接ビード部Beの
削り残し部Feが内側に突出することになる。Then, as shown in FIGS. 5 and 8 (C) and (D), both sides of the welded portion Wz are processed and restrained by the clampers 51 and 52, and then the rough cutting tools 53 and 53 and the finishing tools 54 and 54 are formed.
When cutting is performed, the longitudinal center portion of the welded portion Wz bulges outward due to the restraining force of the clampers 51 and 52, so that the front and back surfaces of the welded portion Wz are cut in parallel to each other. As shown in FIG. 8 (E), an uncut portion Fe occurs on the peripheral surface side. As a result, when the restraining force by the clampers 51 and 52 is released after the end of the trimmer processing, the uncut portion Fe of the weld bead portion Be protrudes inward due to the restoring force of the weld portion Wz as shown in FIG. Become.
このような削り残し部FeのあるワークＷを次工程のロ
ール成形に供給すると、ロードホイールリムを真円に成
形することができず振れ精度が悪くなる。When the work W having such uncut portion Fe is supplied to the roll forming in the next step, the road wheel rim cannot be formed into a perfect circle, and the runout accuracy deteriorates.
したがって、ロール成形の前に上記の削り残し部Feの
除去を目的としたトリマー加工を再度行わなければなら
ず、工数の増大を招く結果となる。Therefore, before the roll forming, the above-described trimmer processing for removing the uncut portion Fe must be performed again, resulting in an increase in the number of steps.
本発明は以上のような問題点に鑑みてなされたもの
で、異形断面鋼板を素材とした円筒状のワークでありな
がら溶接部の溶接ビード部を一回の操作で確実に切削除
去できるようにした方法を提供しようとするものであ
る。The present invention has been made in view of the above-described problems, and it is possible to reliably cut and remove a weld bead portion of a weld portion in a single operation while being a cylindrical work made of a deformed cross-section steel plate. It is intended to provide an improved method.
課題を解決するための手段 本発明は、板幅方向の中央部を薄肉化した矩形状の異
形断面鋼板を素材としてコイリングするとともにその両
端面を突き合わせて溶接してなる円筒状ワークについ
て、上記溶接部に切削加工を施す方法であって、溶接部
の両側を表裏で対をなすクランパーで加工拘束し、溶接
部をはさんでその表裏両面側に対向配置された荒削バイ
トに対し溶接部の長手方向の送りを与えて荒削りする工
程と、前記クランパーによる加圧拘束状態のもとで荒削
りされた溶接部のうち前記薄肉部に相当する部分を片面
側から局部的に加工し、溶接部をはさんで前記加工方向
と反対側に配置されて荒削りバイトを後追いする仕上げ
バイトにより仕上げ切削する工程とを含んでいる。Means for Solving the Problems The present invention relates to a cylindrical workpiece formed by coiling a rectangular deformed steel sheet having a thinned central portion in the sheet width direction as a raw material and welding both ends of the steel plate by butt welding. This is a method of performing cutting processing on the welded part, where both sides of the welded part are restrained with a pair of clampers on the front and back, and the roughed cutting tool placed opposite to the front and back sides across the welded part A step of rough-cutting by giving a feed in the longitudinal direction, and locally processing a portion corresponding to the thin-walled portion of the welded portion roughly cut under a pressure-constrained state by the clamper from one surface side to form a welded portion. Finishing cutting by a finishing tool which is disposed on the opposite side to the machining direction and follows the rough cutting tool.
ここで、荒削りバイトで切削した直後を中削りバイト
で切削し、この中削りバイトを後追いする仕上げバイト
で仕上げ切削を行うようにするとより好ましいものとな
る。Here, it is more preferable that the intermediate cutting tool is cut immediately after cutting with the rough cutting tool, and the finish cutting is performed with a finishing tool that follows the medium cutting tool.
作用 上記の方法によると、荒削りされたあとに薄肉部に相
当する部分を片面側から加圧することで溶接ビード部の
削り残し部が加工方向と反対側の面に突出することにな
る。そして、この削り残し部を仕上げバイトが切削する
ことで一回の操作で全ての溶接ビード部が切削除去され
る。Operation According to the above-described method, the portion corresponding to the thin portion is pressed from one surface side after the rough cutting, so that the uncut portion of the weld bead portion projects to the surface opposite to the processing direction. Then, all the weld bead portions are cut and removed by a single operation by the finishing bit cutting the uncut portion.
実施例 第１図は本発明の一実施例を示す図で、従来と同様に
ロードホイールリムＲの製造方法に適用した場合の例を
示しており、従来例と同一部分には同一符号を付してあ
る。Embodiment FIG. 1 is a view showing an embodiment of the present invention, showing an example in which the present invention is applied to a method of manufacturing a road wheel rim R in the same manner as in the conventional case. I have.
第１図に示すように、荒削りバイト53,53の後段に従
来の仕上げバイト54,54に代えて一対の中削りバイト1,1
を配置するとともに、中削りバイト1,1よりもさらに切
削方向後段に仕上げバイト２と加圧手段として加圧ロー
ラ３を対向配置してある。仕上げバイト２と加工ローラ
３は荒削りバイト53,53および中削りバイト1,1とともに
図示しない共通のスライドに固定支持されていて、加圧
ローラ３にはホルダ４を介してばねあるいは油圧シリン
ダ等により下向きの加圧力が与えられている。As shown in FIG. 1, a pair of medium cutting tools 1,1 are provided after the rough cutting tools 53,53 in place of the conventional finishing tools 54,54.
In addition, a finishing tool 2 and a pressure roller 3 as a pressing means are arranged opposite to the middle cutting tools 1 and 1 in the cutting direction. The finishing tool 2 and the processing roller 3 are fixedly supported on a common slide (not shown) together with the rough cutting tools 53 and 53 and the medium cutting tools 1 and 1. The pressure roller 3 is supported by a spring or a hydraulic cylinder via a holder 4. A downward pressure is applied.
加工手順としては第２図（Ａ）に示すように、ワーク
Ｗの溶接部Wzの両側を第１図のクランパー51,51みよび5
2,52で加圧拘束した上で、各バイト53,53および1,2に矢
印ｆ方向の切削送りを与える。切削送りが与えられると
第２図（Ａ）に示すように先行する荒削りバイト53,53
が溶接部Wzの表裏両面の溶接ビード部Beを切削し、さら
に荒削りバイト53,53を後追いする中削りバイト1,1が、
荒削りバイト53,53で切削しきれなかった溶接ビード部B
eを切削除去する。As shown in FIG. 2 (A), as shown in FIG. 2 (A), both sides of the welded portion Wz of the work W are clamped by the clampers 51 and 51 shown in FIG.
After being constrained by pressure at 2,52, cutting tools in the direction of the arrow f are given to the cutting tools 53, 53 and 1, 2. When the cutting feed is given, the preceding rough cutting tools 53, 53 as shown in FIG.
Cuts the weld bead Be on both the front and back sides of the welded part Wz, and furthermore, the medium cutting tool 1,1, which follows the rough cutting tool 53,53,
Weld bead B that could not be completely cut by rough cutting tool 53,53
e is removed by cutting.
この時、溶接部Wzにおける素材Pa自体（第２図（Ａ）
において溶接ビード部Beを除いた部分）はクランパー5
1,52の加圧拘束力のために薄肉化に伴う凹部Q1が裏面側
（ワークＷの内周側）に表れるように湾曲しており、し
たがって第２図（Ｂ）に示すように中削りバイト1,1に
よって切削されたあとの溶接部Wzの表裏両面は互いに平
行となるものの、溶接部Wzの裏面中央部には溶接ビード
部Beの削り残し部Feが発生する。At this time, the material Pa itself at the welded portion Wz (FIG. 2 (A)
(Except for the weld bead Be)) is the clamper 5
Recess Q 1 due to thinning for pressurization binding of 1, 52 is curved so as to appear on the back side (inner circumference side of the workpiece W), hence the medium as shown in FIG. 2 (B) Although the front and back surfaces of the welded portion Wz after being cut by the cutting bits 1 and 1 are parallel to each other, an uncut portion Fe of the weld bead Be is generated at the center of the back surface of the welded portion Wz.
さらに、第２図（Ｂ）に示すように中削りバイト1,1
による切削が完了しないうちにこの中削りバイト1,1を
後追いする加工ローラ３と仕上げバイト２とが溶接部Wz
をその上下からはさみ込み、中削りバイト1,1が削り残
した削り残し部Feを仕上げバイト２で切削する。Further, as shown in FIG.
Before finishing the cutting by machining, the machining roller 3 and the finishing tool 2 that follow up the medium cutting tools 1 and 1 are welded Wz
Is cut from above and below, and the uncut portion Fe left uncut by the middle cutting bits 1 and 1 is cut by the finishing bit 2.
この際、加圧ローラ３はその加圧力によって溶接部Wz
の中央部をその板厚変化に応じて押し下げるはたらきを
し、クランパー51,52で加圧拘束されている部分のワー
クＷの下面を下側のクランパー51に密着させることにな
るので、加圧ローラ３が転動するのに伴って溶接部Wzの
裏面に残された削り残し部Feが膨出し、この削り残し部
Feを加圧ローラ３と同期移動する仕上げバイト２が削り
取る。At this time, the pressure roller 3 causes the welding portion Wz
The lower part of the work W, which is pressurized and restrained by the clampers 51 and 52, is brought into close contact with the lower clamper 51. With the rolling of No. 3, the uncut portion Fe left on the back surface of the welded portion Wz bulges out, and this uncut portion is removed.
The finishing tool 2 that moves the Fe synchronously with the pressure roller 3 is scraped off.
その結果、一回の切削加工で溶接部Wzの表裏両面の溶
接ビード部Beが全て切削除去され、クランパー51,52の
加圧拘束力を解除することにより溶接部Wzは第２図
（Ｃ）に示すように元の異形断面形状に復元する。As a result, the weld bead Be on both the front and back surfaces of the welded portion Wz is completely removed by a single cutting process, and the pressurized restraining force of the clampers 51 and 52 is released, thereby forming the welded portion Wz in FIG. 2 (C). Then, the original deformed sectional shape is restored as shown in FIG.
なお、溶接部Wzの両端面に残されたばりＦは第４図で
説明したように後工程のサイドカット加工で切断除去さ
れる。The burrs F remaining on both end surfaces of the welded portion Wz are cut and removed by a side cut process in a later step as described in FIG.
第３図は本発明の他の実施例を示すもので、この実施
例においては第１図の加圧ローラ３に代えて上側のクラ
ンパー12内に油圧シリンダ５を駆動源とする加圧手段と
しての可動クランパー６を上下動可能に設けたものであ
る。FIG. 3 shows another embodiment of the present invention. In this embodiment, instead of the pressure roller 3 of FIG. 1, a pressure means using a hydraulic cylinder 5 as a drive source is provided in an upper clamper 12. The movable clamper 6 is vertically movable.
すなわち、第３図（Ａ），（Ｂ）に示すように中削り
バイト1,1が溶接部Wzのうち薄肉部Ｑに相当する部分の
切削を終えるまでは可動クランパー６を作動させること
なく該可動クランパー６をクランパー12の一部として機
能させ、仕上げバイト２が薄肉部Ｑに相当する部分の切
削を開始する直前に可動クランパー６を下動させ、第３
図（Ｃ）に示すように薄肉部Ｑを押し下げて弾性変形さ
せる。その結果、第３図（Ｄ）に示すように削り残し部
Feが下側に膨出して先の実施例と同様に仕上げバイト２
によって切削除去される。That is, as shown in FIGS. 3 (A) and 3 (B), the intermediate cutting tool 1, 1 does not operate the movable clamper 6 until the middle cutting tool 1, 1 finishes cutting the portion corresponding to the thin portion Q of the welded portion Wz. The movable clamper 6 is caused to function as a part of the clamper 12, and the movable clamper 6 is moved down immediately before the finishing bite 2 starts cutting the portion corresponding to the thin portion Q.
As shown in FIG. 3C, the thin portion Q is pushed down to be elastically deformed. As a result, as shown in FIG.
Fe swells downward and finish bite 2 as in the previous embodiment.
Is removed by cutting.
ここで、本発明は異形断面鋼板でない一般的な均一断
面鋼板からなるワークの切削加工にも対応することが可
能であり、その場合には局部的な加圧力付与によって板
厚のばらつきを吸収して溶接ビード部の切削除去効率が
向上するという利点がある。Here, the present invention can also be applied to the cutting of a workpiece made of a general uniform-section steel sheet that is not a deformed-section steel sheet, and in that case, the thickness variation is absorbed by applying a local pressing force. Therefore, there is an advantage that the cutting removal efficiency of the weld bead portion is improved.
発明の効果 以上のように本発明によれば、荒削りされた溶接部の
うち薄肉部に相当する部分を片面側から加圧し、溶接部
をはさんで上記の加圧方向と反対側に位置して荒削りバ
イトを後追いする仕上げバイトにより仕上げ切削するよ
うにしたことにより、一回の切削加工で溶接部の板幅方
向全域にわたってきれいに溶接ビード部を切削除去する
ことができ、従来のような二次加工が不要となって工数
の削減が図れる。Advantageous Effects of the Invention As described above, according to the present invention, a portion corresponding to a thin-walled portion of a rough-cut welded portion is pressurized from one side, and is located on the opposite side to the above-described pressing direction with the welded portion interposed therebetween. The finish bit is followed by a finishing bit that follows the rough cutting bit, so that the weld bead can be cut and removed over the entire area of the weld width in a single cutting process. Processing becomes unnecessary, and man-hours can be reduced.
第１図は本発明方法を応用した切削加工装置の構成説明
図、第２図（Ａ），（Ｂ），（Ｃ）は本発明の第１の実
施例を示す工程説明図、第３図（Ａ），（Ｂ），
（Ｃ），（Ｄ）は本発明の他の実施例を示す工程説明
図、第４図は従来のロードホイールリムの製造方法を示
す工程説明図、第５図は従来の切削加工に用いられる加
工装置の構成説明図、第６図は異形断面鋼板の断面図、
第７図は異形断面鋼板を用いたロードホイールリムの断
面図、第８図（Ａ），（Ｂ），（Ｃ），（Ｄ），
（Ｅ），（Ｆ）は第５図の加工装置による切削加工方法
の工程説明図である。 １…中削りバイト、２…仕上げバイト、３…加圧ロー
ラ、５…油圧シリンダ、６…可動クランパー、12,51,52
…クランパー、53…荒削りバイト、Be…溶接ビード部、
Fe…削り残し部、Pa…異形断面鋼板（素材）、Ｑ…薄肉
部、Ｗ…ワーク、Wz…溶接部。FIG. 1 is an explanatory view of the configuration of a cutting apparatus to which the method of the present invention is applied, FIGS. 2 (A), (B) and (C) are explanatory views of steps showing a first embodiment of the present invention, and FIG. (A), (B),
(C) and (D) are process explanatory views showing another embodiment of the present invention, FIG. 4 is a process explanatory view showing a conventional method for manufacturing a road wheel rim, and FIG. 5 is used for conventional cutting. FIG. 6 is a cross-sectional view of a deformed steel sheet,
FIG. 7 is a cross-sectional view of a road wheel rim using a deformed steel sheet, and FIGS. 8 (A), (B), (C), (D), and FIG.
(E), (F) is a process explanatory view of a cutting method by the processing apparatus of FIG. 1: Medium cutting tool, 2: Finishing tool, 3: Pressure roller, 5: Hydraulic cylinder, 6, Movable clamper, 12, 51, 52
… Clamper, 53… Rough cutting tool, Be… Weld bead,
Fe: uncut portion, Pa: deformed section steel plate (material), Q: thin portion, W: work, Wz: weld.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) B23D 1/20 B23K 37/08 B23K 11/04──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 6 , DB name) B23D 1/20 B23K 37/08 B23K 11/04
Claims (1)
形断面鋼板を素材としてコイリングするとともにその両
端面を突き合わせて溶接してなる円筒状ワークについ
て、上記溶接部に切削加工を施す方法であって、 溶接部の両側を表裏で対をなすクランパーで加圧拘束
し、溶接部をはさんでその表裏両面側に対向配置された
荒削りバイトに対し溶接部の長手方向の送りを与えて荒
削りする工程と、 前記クランパーによる加圧拘束状態のもとで荒削りされ
た溶接部のうち前記薄肉部に相当する部分を片面側から
局部的に加工し、溶接部をはさんで前記加工方向と反対
側に配置されて荒削りバイトを後追いする仕上げバイト
により仕上げ切削する工程、 とを含むことを特徴とする円筒状ワークの切削加工方
法。1. A cylindrical workpiece formed by coiling a rectangular shaped steel sheet having a deformed rectangular cross section having a thinned central portion in a width direction of the sheet and welding both ends of the steel sheet with abutting ends thereof, cutting the welded portion. In this method, both sides of the weld are pressurized and restrained by paired clampers on the front and back, and the longitudinal feed of the weld is given to the roughing cutting tool placed on both sides of the weld with the weld interposed. A step of rough-cutting, a portion corresponding to the thin-walled portion of the welded portion rough-cut under the pressure restrained state by the clamper is locally processed from one side, and the processing direction is sandwiched between the welded portions. And a step of performing a finish cutting by a finishing tool arranged on the opposite side to follow the rough cutting tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1259785A JP2760087B2 (en) | 1989-10-04 | 1989-10-04 | Cutting method of cylindrical work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1259785A JP2760087B2 (en) | 1989-10-04 | 1989-10-04 | Cutting method of cylindrical work |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03121713A JPH03121713A (en) | 1991-05-23 |
| JP2760087B2 true JP2760087B2 (en) | 1998-05-28 |
Family
ID=17338949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1259785A Expired - Lifetime JP2760087B2 (en) | 1989-10-04 | 1989-10-04 | Cutting method of cylindrical work |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2760087B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4539852B2 (en) * | 2005-06-13 | 2010-09-08 | アガタ電子株式会社 | Lead wire stripping device |
| CN115319490B (en) * | 2022-08-30 | 2024-02-02 | 无锡烨隆精密机械股份有限公司 | Tooling and processing method for processing air inlet flange of connected exhaust pipe |
-
1989
- 1989-10-04 JP JP1259785A patent/JP2760087B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03121713A (en) | 1991-05-23 |
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