| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 1 | Torsional tip for helical end mill and its manufacture | JP13132993 | 1993-05-06 | JPH06315835A | 1994-11-15 | FUKUSHIMA KAZUHIKO; KITAGAWA NOBUYUKI; NOMURA TOSHIO |
| PURPOSE: To manufacture a tip excellent in hardness and abrasion resistance at a low cost by forming the torsional tip for a helical end mill from cermet to have the helix angle within the specific angle range. CONSTITUTION: The powder consisting of 60% of TiCN, 10% of Mo 2C, 10% of WC, 5% of TaC, 10% of Co, and 5% of Ni is mixed for 10hr by a wet attracter then is dried, and the cermet powder having the average grain size of about 1.0μm is manufactured. This powder is added with 11wt.% of polyethylene and paraffin, the mixture is kneaded for 5hr at 130°C then injection-molded, the obtained molding is heated and degreased and sintered in vacuum, and a torsional tip 1 having the helix angle within the range of 15°-60° is manufactured. A plurality of the torsional tips 1 are fitted to a shank 2 to form a helical end mill. COPYRIGHT: (C)1994,JPO | ||||||
| 2 | Combined end mill | JP20286286 | 1986-08-29 | JPS6357113A | 1988-03-11 | YOSHIMURA HIRONORI |
| PURPOSE:To prolong service life, reduce interchanging frequency and form a cutting finish surface into precision as well as to aim at the omission of a surface finishing process after treatment, by selecting carbon titanium nitride- based cermet as a material for a cutting edge of a combined end mill. CONSTITUTION:This end mill is made up of brazing a TiCN-based cermet cutting edge 2 to a steel schank 1. And, TiCN-based cermet contains WC: 5-30% in wt%, TaC: 5-20%, Mo2 C: 5-20%, Ni: 1-20% and Co: 1-20%, and it is optimum that the rest is composed of such one having composition consisting of TiCN and inevitable impurities. With this constitution, service life is long, and cutting finish surface comes to precision enough so that changing frequency becomes lessened, and a technologically excellent effect that a surface finishing process as aftertreatment is omissible or the like is securable, in addition to the above-mentioned. | ||||||
| 3 | 탄탈륨카바이드 분말 제조 방법 | KR1020160067256 | 2016-05-31 | KR101794626B1 | 2017-12-01 | 이고기; 마봉열 |
| 본발명은탄탈륨을포함하는스크랩을세척하여유분이제거된스크랩을제공하는단계, 상기유분이제거된스크랩을열처리하여금속불순물을기화시키고, 탄탈륨잉곳을제조하는단계, 상기탄탈륨잉곳을수소화및 탈수소화시켜탄탈륨분말을제조하는단계, 및상기탄탈륨분말및 탄소분말을진공또는불활성기체분위기에서자전연소반응시켜탄탈륨카바이드분말을제조하는단계를포함하는탄탈륨카바이드분말제조방법을제공하며, 이에따르면, 스크랩으로부터순도가높은탄탈륨분말을회수하고이를이용하여탄탈륨카바이드분말을제조할수 있으며, 이러한방법으로제조된탄탈륨분말및 탄탈륨카바이드분말을초합금소재, 반도체타겟, 초경공구등 다양한분야에서유용하게사용되는효과가있다. | ||||||
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