JP5660034B2 - 立方晶窒化硼素焼結体および被覆立方晶窒化硼素焼結体 - Google Patents
立方晶窒化硼素焼結体および被覆立方晶窒化硼素焼結体 Download PDFInfo
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Description
平均粒径2μmの立方晶窒化硼素(cBN)粉末、表1に示す平均粒径のTi(C0.5N0.5)粉末、Ti(C0.8N0.2)粉末、Ti(C0.2N0.8)粉末およびTiN粉末(いずれも金属元素と非金属元素の比率が原子比で1:1の化学量論組成であるTi化合物)、平均粒径2μmのAl粉末を用いて表1に示す配合組成に配合した。配合した原料粉末を超硬合金製ボールとヘキサン溶媒とパラフィンとともにボールミル用のシリンダーに入れてボールミル混合を48時間行った。ボールミルで混合粉砕して得られた混合粉末を圧粉成型した後、1X10-5Torr、850℃の条件で脱パラフィン処理をした。脱パラフィン処理をした圧粉成型体を金属カプセルに封入し、金属カプセルを超高圧高温発生装置に入れて、圧力5.5GPa、温度1500℃、保持時間30分の条件で焼結して、発明品および比較品の立方晶窒化硼素焼結体を得た。
外周連続乾式切削(旋削)、
被削材:SCM415H(HRC60.9〜61.7)、
被削材形状:円柱φ63mm×L200mm、
切削速度:250m/min、
切込み:0.25mm、
送り:0.1mm/rev、
切削インサート形状:ISO規格CNGA120408、
評価:VBc=0.15mmに達するまでの切削時間あるいは欠損までの切削時間。
外周弱断続乾式切削(旋削)、
被削材:SCM435H(HRC60.9〜61.7)、
被削材形状:90°V溝2本入り円柱φ48mm×L200mm、
切削速度:200m/min、
切込み:0.25mm、
送り:0.1mm/rev、
切削インサート形状:ISO規格CNGA120408、
評価:VBc=0.15mmに達するまでの切削時間あるいは欠損までの切削時間。
実施例1の発明品3の表面にPVD装置を用いて被覆処理を行った。平均膜厚3μmのTiNを被覆したものを発明品6、平均膜厚3μmのTiAlNを被覆したものを発明品7とした。発明品6、7について実施例1と同じ切削試験(1)(2)を行った。その結果を表6に示す。
2 ピーク分離した後の炭窒化チタンの(200)面回折線
3 ピーク分離した後の窒化チタンの(200)面回折線
4 ピーク分離した後の立方晶窒化硼素の(111)面回折線
Claims (3)
- 窒化チタンおよび炭窒化チタンを含有する結合相と立方晶窒化硼素と不可避的不純物とからなり、Cu−Kα線を用いたX線回折測定における、炭窒化チタンの(200)面回折線のブラッグ角2θと窒化チタンの(200)面回折線のブラッグ角2θとの間隔が0.30°以上0.60°以下であり、炭窒化チタンの(200)面回折線の半価幅が0.30°以上0.50°以下であり、
酸化アルミニウム:立方晶窒化硼素焼結体全体に対して3〜30体積%と、
窒化チタンと炭窒化チタンの合計:立方晶窒化硼素焼結体全体に対して10〜60体積%と、
硼化チタン:立方晶窒化硼素焼結体全体に対して1〜30体積%と、
窒化アルミニウムおよび硼化アルミニウムの1種または2種:立方晶窒化硼素焼結体全体に対して10体積%以下とからなる
合計して立方晶窒化硼素焼結体全体に対して20〜80体積%の結合相と、
立方晶窒化硼素焼結体全体に対して80〜20体積%の立方晶窒化硼素および不可避的不純物とから構成され、
Cu−Kα線を用いたX線回折測定における、炭窒化チタンの(200)面回折線のピーク強度I TiCN に対する窒化チタンの(200)面回折線のピーク強度I TiN のピーク強度比(I TiN /I TiCN )が0.1〜0.5である、立方晶窒化硼素焼結体。 - 窒化チタンの(200)面回折線の半価幅が0.25°以上0.45°以下である請求項1に記載の立方晶窒化硼素焼結体。
- 請求項1または請求項2に記載の立方晶窒化硼素焼結体の表面に被膜を被覆した被覆立方晶窒化硼素焼結体。
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| Application Number | Priority Date | Filing Date | Title |
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| JP2011509370A JP5660034B2 (ja) | 2009-04-17 | 2010-04-16 | 立方晶窒化硼素焼結体および被覆立方晶窒化硼素焼結体 |
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| JP2009100642 | 2009-04-17 | ||
| JP2009100642 | 2009-04-17 | ||
| PCT/JP2010/056873 WO2010119962A1 (ja) | 2009-04-17 | 2010-04-16 | 立方晶窒化硼素焼結体および被覆立方晶窒化硼素焼結体 |
| JP2011509370A JP5660034B2 (ja) | 2009-04-17 | 2010-04-16 | 立方晶窒化硼素焼結体および被覆立方晶窒化硼素焼結体 |
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| JPWO2010119962A1 JPWO2010119962A1 (ja) | 2012-10-22 |
| JP5660034B2 true JP5660034B2 (ja) | 2015-01-28 |
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| US (1) | US20120035045A1 (ja) |
| EP (1) | EP2420483B1 (ja) |
| JP (1) | JP5660034B2 (ja) |
| WO (1) | WO2010119962A1 (ja) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB201108975D0 (en) * | 2011-05-27 | 2011-07-13 | Element Six Ltd | Superhard structure, tool element and method of making same |
| JP6082650B2 (ja) * | 2013-04-26 | 2017-02-15 | 株式会社タンガロイ | 立方晶窒化硼素焼結体および被覆立方晶窒化硼素焼結体 |
| CN103741002B (zh) * | 2013-06-28 | 2016-07-06 | 长春阿尔玛斯科技有限公司 | 一种超硬复合材料的制备方法 |
| JP6637664B2 (ja) * | 2014-03-28 | 2020-01-29 | 三菱マテリアル株式会社 | 立方晶窒化硼素焼結体切削工具 |
| JP5834329B2 (ja) * | 2014-04-25 | 2015-12-16 | 住友電工ハードメタル株式会社 | 複合焼結体および表面被覆窒化硼素焼結体工具 |
| CN104525935B (zh) * | 2014-12-12 | 2016-09-28 | 郑州博特硬质材料有限公司 | 一种高韧性立方氮化硼烧结材料及其制备方法 |
| JP2017014084A (ja) * | 2015-07-03 | 2017-01-19 | 昭和電工株式会社 | 立方晶窒化硼素焼結体、立方晶窒化硼素焼結体の製造方法、工具、および切削工具 |
| GB201609672D0 (en) * | 2016-06-02 | 2016-07-20 | Element Six Uk Ltd | Sintered polycrystalline cubic boron nitride material |
| KR102064172B1 (ko) * | 2017-09-01 | 2020-01-09 | 한국야금 주식회사 | 내마모성과 인성이 우수한 경질피막 |
| JP7634013B2 (ja) * | 2019-12-23 | 2025-02-20 | ダイヤモンド イノヴェーションズ インコーポレイテッド | 立方晶窒化ホウ素ベースの複合材及びその製造方法 |
| EP4119270A4 (en) | 2020-03-13 | 2024-04-24 | Mitsubishi Materials Corporation | HARD COMPOSITE MATERIAL |
| WO2022210771A1 (ja) * | 2021-03-31 | 2022-10-06 | 三菱マテリアル株式会社 | 掘削チップおよび掘削工具 |
| WO2022210760A1 (ja) * | 2021-03-31 | 2022-10-06 | 三菱マテリアル株式会社 | 掘削チップおよび掘削工具 |
| CN116410004B (zh) * | 2022-03-08 | 2024-07-30 | 富耐克超硬材料股份有限公司 | 一种聚晶立方氮化硼复合材料的制备方法 |
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| JP2003236707A (ja) * | 2001-12-11 | 2003-08-26 | Mitsubishi Materials Corp | 耐チッピング性のすぐれた立方晶窒化ほう素基超高圧焼結材料製切削チップ |
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- 2010-04-16 WO PCT/JP2010/056873 patent/WO2010119962A1/ja not_active Ceased
- 2010-04-16 US US13/259,982 patent/US20120035045A1/en not_active Abandoned
- 2010-04-16 JP JP2011509370A patent/JP5660034B2/ja active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| US20120035045A1 (en) | 2012-02-09 |
| EP2420483A4 (en) | 2012-10-24 |
| EP2420483A1 (en) | 2012-02-22 |
| WO2010119962A1 (ja) | 2010-10-21 |
| EP2420483B1 (en) | 2016-09-28 |
| JPWO2010119962A1 (ja) | 2012-10-22 |
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