JPWO2016110964A1 - 放電加工用電極線及びその製造方法 - Google Patents
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- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
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- B23K35/0266—Rods, electrodes, wires flux-cored
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- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/302—Cu as the principal constituent
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
- B23K35/404—Coated rods; Coated electrodes
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/04—Alloys based on copper with zinc as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/165—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon of zinc or cadmium or alloys based thereon
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- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/22—Electroplating: Baths therefor from solutions of zinc
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/48—After-treatment of electroplated surfaces
- C25D5/50—After-treatment of electroplated surfaces by heat-treatment
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/06—Wires; Strips; Foils
- C25D7/0607—Wires
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- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/026—Alloys based on copper
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
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- H01B19/04—Treating the surfaces, e.g. applying coatings
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
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- C22C18/02—Alloys based on zinc with copper as the next major constituent
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Abstract
Description
[2]前記被覆層は、銅−亜鉛系合金であるγ相を含む内層を有する前記[1]に記載の放電加工用電極線。
[3]前記被覆層中のε相の(0001)X線回折強度が、前記被覆層中のγ相の(332)X線回折強度の2倍よりも大きい前記[2]に記載の放電加工用電極線。
[4]前記芯材は、黄銅からなる前記[1]〜[3]のいずれか1つに記載の放電加工用電極線。
[5]銅又は銅合金からなる芯材の外周が亜鉛を含む被覆層により被覆されている放電加工用電極線の製造方法において、前記芯材の外周に亜鉛めっき又は亜鉛合金めっきを1回施す工程と、めっきを施した前記芯材を伸線する工程と、伸線後に、前記被覆層が銅−亜鉛系合金であるε相のみからなる最外層を有し、前記最外層のCu濃度が12〜20質量%であって、電極線長手方向のCu濃度のばらつき幅が5質量%以内となる熱処理条件で熱処理を施す工程とを含む放電加工用電極線の製造方法。
[6]前記熱処理条件は、熱処理温度100〜120℃、熱処理時間3〜24時間の範囲内である前記[5]に記載の放電加工用電極線の製造方法。
図1は、本発明の実施の形態に係る放電加工用電極線の構造を示す横断面図である。
図1に示される本発明の実施の形態に係る放電加工用電極線10は、銅又は銅合金からなる芯材1の外周が亜鉛を含む被覆層2により被覆されており、被覆層2は、銅−亜鉛系合金であるε相のみからなる最外層2Bを有し、最外層2Bは、Cu濃度が12〜20質量%であって、電極線長手方向のCu濃度のばらつき幅が5質量%以内であることを特徴とする。被覆層2を構成する最外層2Bは、放電加工用電極線10の表面層である。
本発明の実施の形態に係る放電加工用電極線10の製造方法は、銅又は銅合金からなる芯材1の外周が亜鉛を含む被覆層2により被覆されている放電加工用電極線10の製造方法において、芯材1の外周に亜鉛めっき又は亜鉛合金めっきを1回施す工程と、めっきを施した芯材1を伸線する工程と、伸線後に、被覆層2が銅−亜鉛系合金であるε相のみからなる最外層2Bを有し、最外層2BのCu濃度が12〜20質量%であって、電極線長手方向のCu濃度のばらつき幅が5質量%以内となる熱処理条件で熱処理を施す工程とを含むことを特徴とする。以下、熱処理を焼鈍と言うことがある。
本発明の実施形態によれば、以下の効果を奏する。
(1)芯材の外周に亜鉛被覆を有する放電加工用電極線において最表面層のCu濃度のばらつきが抑制された放電加工用電極線及びその製造方法を提供できる。
(2)1回のめっき工程で製造できるため、生産性に優れる放電加工用電極線及びその製造方法を提供できる。
芯材1としての黄銅線(線径:1.2mm)上に電解亜鉛めっき法により厚さ約10μmの亜鉛めっき層を形成した。亜鉛めっきを施した芯材1を線径が0.20mm(めっき層1.7μm)になるまで伸線した後、ボビン(F350:胴径340mm)に巻き取り、この状態で焼鈍(熱処理)を行ない、各300kgの放電加工用電極線を製造した。焼鈍(熱処理)条件は、実施例は、100℃、8時間であり、比較例は160℃、3時間である。
下記の方法により放電加工用電極線を製造し、前述の薄膜法(X線入射角度:10°)によりX線回折強度の測定を行なった。図3A〜Cは、各焼鈍時間及び焼鈍温度で作製した放電加工用電極線(芯材の線径:0.20mm)についてのX線回折強度の測定結果を示しており、図3Aは被覆層中のε相(CuZn5)の(0001)強度の測定結果であり、図3Bは被覆層中のγ相(Cu5Zn8)の(332)強度の測定結果であり、図3Cは被覆層中のη相(Zn)の(100)強度の測定結果である。なお、図3A〜Cにおける25℃のプロットは、焼鈍しなかった放電加工用電極線の測定結果である。
10:電極線
Claims (6)
- 銅又は銅合金からなる芯材の外周が亜鉛を含む被覆層により被覆されており、
前記被覆層は、銅−亜鉛系合金であるε相のみからなる最外層を有し、
前記最外層は、Cu濃度が12〜20質量%であって、電極線長手方向のCu濃度のばらつき幅が5質量%以内である放電加工用電極線。 - 前記被覆層は、銅−亜鉛系合金であるγ相を含む内層を有する請求項1に記載の放電加工用電極線。
- 前記被覆層中のε相の(0001)X線回折強度が、前記被覆層中のγ相の(332)X線回折強度の2倍よりも大きい請求項2に記載の放電加工用電極線。
- 前記芯材は、黄銅からなる請求項1〜3のいずれか1項に記載の放電加工用電極線。
- 銅又は銅合金からなる芯材の外周が亜鉛を含む被覆層により被覆されている放電加工用電極線の製造方法において、
前記芯材の外周に亜鉛めっき又は亜鉛合金めっきを1回施す工程と、
めっきを施した前記芯材を伸線する工程と、
伸線後に、前記被覆層が銅−亜鉛系合金であるε相のみからなる最外層を有し、前記最外層のCu濃度が12〜20質量%であって、電極線長手方向のCu濃度のばらつき幅が5質量%以内となる熱処理条件で熱処理を施す工程とを含む放電加工用電極線の製造方法。 - 前記熱処理条件は、熱処理温度100〜120℃、熱処理時間3〜24時間の範囲内である請求項5に記載の放電加工用電極線の製造方法。
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PCT/JP2015/050277 WO2016110964A1 (ja) | 2015-01-07 | 2015-01-07 | 放電加工用電極線及びその製造方法 |
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US (1) | US10399167B2 (ja) |
EP (1) | EP3100813A4 (ja) |
JP (1) | JP6369546B2 (ja) |
KR (1) | KR20160113285A (ja) |
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JP6418507B2 (ja) * | 2014-11-07 | 2018-11-07 | 日立金属株式会社 | 放電加工用電極線の製造方法 |
WO2016110963A1 (ja) * | 2015-01-07 | 2016-07-14 | 日立金属株式会社 | 放電加工用電極線及びその製造方法 |
JP6905106B1 (ja) | 2020-01-30 | 2021-07-21 | 株式会社ソディック | 熱処理炉、加熱装置、ワイヤ電極の製造方法および熱拡散処理方法 |
CN111673311B (zh) * | 2020-05-19 | 2022-02-25 | 西安理工大学 | Ta1-q235b中间层焊接用焊丝及制备方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5467519A (en) * | 1977-11-10 | 1979-05-31 | Hideo Kaneko | Wire electrode alloy for discharge processing |
US5945010A (en) * | 1997-09-02 | 1999-08-31 | Composite Concepts Company, Inc. | Electrode wire for use in electric discharge machining and process for preparing same |
JP2004160655A (ja) * | 1995-03-24 | 2004-06-10 | Berkenhoff Gmbh | ワイヤー電極 |
US20090025959A1 (en) * | 2005-12-01 | 2009-01-29 | Dandridge Tomalin | Edm wire |
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DE2742008C2 (de) | 1977-09-17 | 1983-12-29 | Diehl GmbH & Co, 8500 Nürnberg | Verfahren zur Herstellung eines Messing-Werkstoffes mit Mikroduplex-Gefüge |
US5762726A (en) | 1995-03-24 | 1998-06-09 | Berkenhoff Gmbh | Wire electrode and process for producing a wire electrode, particular for a spark erosion process |
JP2002126950A (ja) | 2000-10-23 | 2002-05-08 | Sumitomo Metal Mining Co Ltd | ワイヤ放電加工用電極線の製造方法 |
FR2833875B1 (fr) | 2001-12-21 | 2004-07-02 | Thermocompact Sa | Fil pour electroerosion a grande vitesse d'usinage |
KR100543847B1 (ko) * | 2005-04-01 | 2006-01-20 | 주식회사 엠에이씨티 | 방전가공용 전극선 및 그 제조 방법 |
JP2008296298A (ja) | 2007-05-30 | 2008-12-11 | Oki Electric Cable Co Ltd | ワイヤ放電加工用電極線 |
CN104191056B (zh) | 2014-08-13 | 2016-06-29 | 宁波博威麦特莱科技有限公司 | 一种高精度锌基合金电极丝及其制备方法 |
JP6418507B2 (ja) | 2014-11-07 | 2018-11-07 | 日立金属株式会社 | 放電加工用電極線の製造方法 |
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- 2015-01-07 EP EP15876842.4A patent/EP3100813A4/en not_active Withdrawn
- 2015-01-07 JP JP2016534746A patent/JP6369546B2/ja active Active
- 2015-01-07 KR KR1020167023769A patent/KR20160113285A/ko not_active Application Discontinuation
- 2015-01-07 WO PCT/JP2015/050277 patent/WO2016110964A1/ja active Application Filing
- 2015-01-07 US US15/122,081 patent/US10399167B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5467519A (en) * | 1977-11-10 | 1979-05-31 | Hideo Kaneko | Wire electrode alloy for discharge processing |
JP2004160655A (ja) * | 1995-03-24 | 2004-06-10 | Berkenhoff Gmbh | ワイヤー電極 |
US5945010A (en) * | 1997-09-02 | 1999-08-31 | Composite Concepts Company, Inc. | Electrode wire for use in electric discharge machining and process for preparing same |
US20090025959A1 (en) * | 2005-12-01 | 2009-01-29 | Dandridge Tomalin | Edm wire |
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JP6369546B2 (ja) | 2018-08-08 |
EP3100813A1 (en) | 2016-12-07 |
US10399167B2 (en) | 2019-09-03 |
KR20160113285A (ko) | 2016-09-28 |
EP3100813A4 (en) | 2017-10-11 |
US20170014927A1 (en) | 2017-01-19 |
WO2016110964A1 (ja) | 2016-07-14 |
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