JPH05185301A - Manufacture of pipe part - Google Patents

Manufacture of pipe part

Info

Publication number
JPH05185301A
JPH05185301A JP2322592A JP2322592A JPH05185301A JP H05185301 A JPH05185301 A JP H05185301A JP 2322592 A JP2322592 A JP 2322592A JP 2322592 A JP2322592 A JP 2322592A JP H05185301 A JPH05185301 A JP H05185301A
Authority
JP
Japan
Prior art keywords
pipe part
pipe
cut
core material
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.)
Pending
Application number
JP2322592A
Other languages
Japanese (ja)
Inventor
Haruki Yamazaki
春樹 山嵜
Masami Kitsuta
正美 橘田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tanaka Kikinzoku Kogyo KK
Original Assignee
Tanaka Kikinzoku Kogyo KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tanaka Kikinzoku Kogyo KK filed Critical Tanaka Kikinzoku Kogyo KK
Priority to JP2322592A priority Critical patent/JPH05185301A/en
Publication of JPH05185301A publication Critical patent/JPH05185301A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P13/00—Making metal objects by operations essentially involving machining but not covered by a single other subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F37/00—Manufacture of rings from wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B1/00—Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2215/00—Details of workpieces
    • B23B2215/72—Tubes, pipes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)

Abstract

PURPOSE:To provide the manufacture of a pipe part, by which the pipe part can be chamfered without producing burrs, and therefore the pipe part has a smooth cutting surface. CONSTITUTION:In manufacturing a pipe part 10' of prescribed dimensions by cutting it with a lathe, the pipe part is made in the form of a double layer composite wire making its core material of fusible metal, and then it is cut into prescribed dimensions by a lathe, and thereafter, it is subjected to acid treatment for resolving and removing the core material.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は各種パイプ部品の製造方
法に係り、詳しくは微小径パイプの切断面仕上がり良好
な切断方法に関するもので、特にペースメーカ等の電極
部品としての医療用貴金属パイプ部品等の製造に好適で
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing various pipe parts, and more particularly to a method of cutting a fine-diameter pipe with a good finished cut surface, and particularly to medical precious metal pipe parts as electrode parts for pacemakers and the like. Is suitable for manufacturing.

【０００２】[0002]

【従来技術と課題】ペースメーカの電極部品等の医療用
貴金属パイプ部品においては、切断端部に微小なバリが
あったり、なめらかでなかったりすると人体に損傷を与
えたり、炎症をひきおこしたりするもので、その切断面
仕上がりは重要なポイントであった。従来、パイプ材か
ら所定寸法の長さに切断しパイプ部品とするには旋盤加
工による方法があったが、突切りバイトにて突切り加工
する際、内径の振れにより同軸度が出ない為、切断終了
時にバリが発生することとなり、この為端部内側はドリ
ルによるバリをさらえる工程が必要であったり、また、
切り落としたパイプ部品にもバリが発生、残留している
為、バレル加工、研磨等の工程を要し手間隙がかかり煩
雑なものであった。その他、ワイヤカット（放電加
工）、ワイヤソー、パイプカッター等の方法もあるが、
いずれもバリがない端面のなめらかなパイプ部品を効率
良く加工することはできなかった。2. Description of the Prior Art In medical precious metal pipe parts such as electrode parts of pacemakers, if there is a minute burr at the cut end or if it is not smooth, it may damage the human body or cause inflammation. The finish of the cut surface was an important point. Conventionally, there was a method of lathe processing to cut a pipe material to a predetermined length to make a pipe part, but when performing a parting process with a parting tool, the concentricity does not appear due to the deflection of the inner diameter, Burrs will be generated at the end of cutting, so a process to expose the burrs to the inside of the end by a drill is necessary,
Since burr is generated and remains on the cut-off pipe parts, it requires a process such as barrel processing and polishing, which requires a lot of labor and is complicated. There are other methods such as wire cutting (electrical discharge machining), wire saw, and pipe cutter.
In all cases, it was not possible to efficiently process a pipe part with a smooth burr-free end surface.

【０００３】[0003]

【発明の目的】本発明は、バリを発生させずに面取り加
工ができ、もってなめらかな切断面を有したパイプ部品
の製造方法を提供するものである。It is an object of the present invention to provide a method of manufacturing a pipe part which can be chamfered without generating burrs and has a smooth cut surface.

【０００４】[0004]

【発明の構成】上記課題を解決する為の本発明の技術的
手段は、旋盤加工にて切断し、所定寸法のパイプ部品を
製造するにおいて、可溶性金属を芯材とした二層複合線
とした後、旋盤にて所定寸法に切断し、しかる後酸処理
して芯材を溶解除去することを特徴とするものである。The technical means of the present invention for solving the above problems is a two-layer composite wire having a fusible metal as a core material when a pipe component having a predetermined size is cut by lathe processing. After that, the core material is cut into a predetermined size with a lathe, and then subjected to an acid treatment to dissolve and remove the core material.

【０００５】[0005]

【作用】上記のように構成された本発明のパイプ部品の
製造方法によれば、芯材の入った二層の複合線なので、
パイプ部の切断後も芯材が残ることとなり従来のように
パイプ部切断終了時のバリが発生しないものである。ま
た、芯材により強度が保持されるので、従来のようにパ
イプ材ではできなかったバイトでのならい加工による面
取り（端面のなめらかな）加工ができるものである。そ
の後、突切りバイトにて切断終了とともに次のパイプ部
の面取り加工が連続して効率良くできるものである。切
断後は、酸処理にて芯材を溶解除去できるのでバリの無
い、面取りされたなめらかな切断面を有したパイプ部品
が効率良く得られることとなる。According to the method of manufacturing a pipe component of the present invention constructed as described above, since it is a two-layer composite wire containing a core material,
Since the core material remains after cutting the pipe portion, burrs do not occur at the end of cutting the pipe portion as in the conventional case. Further, since the strength is maintained by the core material, it is possible to perform chamfering (smooth end surface) by profiling with a cutting tool, which was not possible with conventional pipe materials. After that, when the cutting is completed by the cut-off tool, chamfering of the next pipe portion can be continuously and efficiently performed. After cutting, the core material can be dissolved and removed by acid treatment, so that a pipe part having a chamfered and smooth cut surface without burrs can be efficiently obtained.

【０００６】[0006]

【実施例】以下に実施例、従来例について説明する。EXAMPLES Examples and conventional examples will be described below.

【０００７】まず、芯材１としてＣｕ、外被材２として
ＰｔＩｒ10％の外径1.82mm、芯材の径1.41mm、長さ２ｍ
の二層の複合線３をＮＣ旋盤にセットし、回転数1500rp
m で図１に示す如くＣ0.05の面取りをとるようにバイト
４にて切り込み、芯材を含めて座ぐり断面形状にした。
次いで図２に点線で示すようにバイト５にて突切り加工
し図３に示す如く切断部品６と面取り端面を有した複合
線７とした。同様の工程にて順次切断加工を続けた。そ
の後、切断部品６を硝酸20％水溶液にて酸処理し芯材を
溶解除去し外径1.82mm、内径1.41mm、長さ2.05mmの図４
に示す如くパイプ部品10′を得た。First, the core material 1 is Cu, the outer coating material 2 is PtIr10% outer diameter 1.82 mm, the core material diameter 1.41 mm, and the length 2 m.
Set the two-layer composite wire 3 on the NC lathe and rotate at 1500 rp
As shown in FIG. 1, C m was chamfered with m to cut with a cutting tool 4 to form a cross section of the spot facing including the core material.
Then, as shown by a dotted line in FIG. 2, a cutting tool 5 is cut off to form a composite wire 7 having a cutting component 6 and a chamfered end surface as shown in FIG. The cutting process was continued in the same process. After that, the cutting part 6 is acid-treated with a 20% aqueous solution of nitric acid to dissolve and remove the core material, and the outer diameter is 1.82 mm, the inner diameter is 1.41 mm, and the length is 2.05 mm.
A pipe part 10 'was obtained as shown in.

【０００８】一方、従来例として図４に示す如く外径1.
82mm、内径1.41mm、材質ＰｔＩｒ10％のパイプ材８をＮ
Ｃ旋盤（図示せぬ）にセットし、図５に示す如く突切り
バイト９にて突切り加工し長さ2.05mmのパイプ部品10を
得た。On the other hand, as a conventional example, as shown in FIG. 4, the outer diameter is 1.
82 mm, inner diameter 1.41 mm, pipe material 8 made of PtIr10% N
It was set on a C lathe (not shown) and cut off with a cut-off tool 9 as shown in FIG. 5 to obtain a pipe part 10 having a length of 2.05 mm.

【０００９】然して、各々10ケの切断面仕上がりの品質
検査を行ったところ、従来例においては長さ 0.3mm以上
のバリ11が発生し、切断端部はエッチ状でなめらかでな
かったのに対し、実施例においてはバリは皆無で、切断
端部はＣ0.05の面取りされたなめらかな切断面を有した
パイプ部品であった。However, when a quality inspection was performed on the finish of each of the 10 cut surfaces, burrs 11 having a length of 0.3 mm or more were generated in the conventional example, and the cut end was not etched and smooth. In the examples, there were no burrs and the cut end was a pipe part having a C0.05 chamfered smooth cut surface.

【００１０】[0010]

【発明の効果】以上のように本発明のパイプ部品の製造
方法によれば、可溶性金属を芯材とした二層複合線から
旋盤にて所定寸法に切断し、しかる後、酸処理して芯材
を溶解除去するので、切断終了時のバリが発生すること
なく、また面取り加工ができ、もってなめらかな切断面
を有したパイプ部品を効率良く得られるという優れた効
果を有するものであり、特に医療用微小径の貴金属パイ
プ部品に好適である。As described above, according to the method for manufacturing a pipe part of the present invention, a two-layer composite wire having a soluble metal as a core material is cut into a predetermined size by a lathe, and then acid-treated to obtain a core. Since the material is dissolved and removed, burrs do not occur at the end of cutting, chamfering can be performed, and there is an excellent effect that a pipe part having a smooth cut surface can be efficiently obtained, Suitable for small diameter precious metal pipe parts for medical use.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明のパイプ製品の製造方法の一実施例にお
ける製造工程を示す図。FIG. 1 is a diagram showing a manufacturing process in an embodiment of a method for manufacturing a pipe product of the present invention.

【図２】本発明のパイプ製品の製造方法の一実施例にお
ける製造工程を示す図。FIG. 2 is a diagram showing a manufacturing process in one embodiment of a method for manufacturing a pipe product of the present invention.

【図３】本発明のパイプ製品の製造方法の一実施例にお
ける製造工程を示す図。FIG. 3 is a diagram showing a manufacturing process in one embodiment of the method for manufacturing a pipe product of the present invention.

【図４】本発明のパイプ製品の製造方法の一実施例にお
ける製造工程を示す図。FIG. 4 is a diagram showing a manufacturing process in one embodiment of a method for manufacturing a pipe product of the present invention.

【図５】従来のパイプ部品の製造方法における製造工程
を示す図。FIG. 5 is a view showing a manufacturing process in a conventional method for manufacturing a pipe part.

【図６】従来のパイプ部品の製造方法における製造工程
を示す図。FIG. 6 is a view showing a manufacturing process in a conventional method for manufacturing a pipe part.

【符号の説明】 １ 芯材 ２ 外被材 ３ 複合線 ６ 切断部品 10′ パイプ部品[Explanation of symbols] 1 core material 2 outer covering material 3 composite wire 6 cutting parts 10 'pipe parts

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 旋盤加工にて切断し、所定寸法のパイプ
部品を製造するにおいて、可溶性金属を芯材とした二層
複合線とした後、旋盤にて所定寸法に切断し、しかる後
酸処理して芯材を溶解除去することを特徴とするパイプ
部品の製造方法。1. When manufacturing a pipe component having a predetermined size by cutting with a lathe, a two-layer composite wire having a soluble metal as a core material is cut, and then cut with a lathe to have a predetermined size, followed by acid treatment. A method of manufacturing a pipe part, characterized by dissolving and removing the core material.
JP2322592A 1992-01-13 1992-01-13 Manufacture of pipe part Pending JPH05185301A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2322592A JPH05185301A (en) 1992-01-13 1992-01-13 Manufacture of pipe part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2322592A JPH05185301A (en) 1992-01-13 1992-01-13 Manufacture of pipe part

Publications (1)

Publication Number Publication Date
JPH05185301A true JPH05185301A (en) 1993-07-27

Family

ID=12104697

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2322592A Pending JPH05185301A (en) 1992-01-13 1992-01-13 Manufacture of pipe part

Country Status (1)

Country Link
JP (1) JPH05185301A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102151841A (en) * 2010-12-31 2011-08-17 东莞市新志密封技术有限公司 Method for chamfering polytetrafluoroethylene guide tape and chamfering machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102151841A (en) * 2010-12-31 2011-08-17 东莞市新志密封技术有限公司 Method for chamfering polytetrafluoroethylene guide tape and chamfering machine
CN102151841B (en) * 2010-12-31 2015-09-30 广东新志密封技术有限公司 A kind of method of polytetrafluoroethylene (PTFE) guidance tape chamfering and beveler

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