{"id":21315,"date":"2026-10-08T12:18:04","date_gmt":"2026-10-08T04:18:04","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=21315"},"modified":"2026-10-16T16:21:59","modified_gmt":"2026-10-16T08:21:59","slug":"drilling-hardened-tool-steel","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/drilling-hardened-tool-steel\/","title":{"rendered":"\uacbd\ud654\ub41c \uacf5\uad6c\uac15 \ub4dc\ub9b4\ub9c1"},"content":{"rendered":"

\uacbd\ud654\ub41c \uacf5\uad6c\uac15 \ub4dc\ub9b4\ub9c1<\/h1>\n\n\n\n

\uad6c\uba4d\uc740 \uacf5\uad6c\uac15 \ubd80\ud488\uc774 \uc544\uc9c1 \uc5f0\uc9c8\uc77c \ub54c \uac00\uacf5\ud558\ub294 \uac00\uc7a5 \uc800\ub834\ud55c \ud615\uc0c1\uc774\uba70, \uacbd\ud654 \ud6c4\uc5d0 \uac00\uacf5\ud558\ub294 \uac00\uc7a5 \ube44\uc2fc \ud615\uc0c1\uc785\ub2c8\ub2e4. \uacbd\ud654\ub41c \ub2e4\uc774 \ub610\ub294 \uc778\uc11c\ud2b8\uc5d0 \ub4dc\ub9b4\ub9c1\uc744 \ud574\uc57c \ud558\ub294 \uacbd\uc6b0, \uacf5\uad6c \uc7ac\ub8cc\uc640 \uc808\uc0ad \uc18d\ub3c4\ub294 \uacbd\ub3c4\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9c0\uba70, \ub2e4\uc774\uac15\uc5d0 \ub300\ud55c \uacf5\uac1c\ub41c \uc2e4\ubb34 \uc9c0\uce68\uc740 50 HRC\uc5d0\uc11c \uba85\ud655\ud55c \ub2e8\uacc4\ub97c \uc81c\uc2dc\ud569\ub2c8\ub2e4. \uc774 \ud398\uc774\uc9c0\uc5d0\uc11c\ub294 \uc5f0\uc9c8 \ubc0f \uacbd\ud654 \uc0c1\ud0dc \ubaa8\ub450\uc5d0\uc11c \uacf5\uad6c\uac15\uc5d0 \ub300\ud55c \ub4dc\ub9b4 \ud30c\ub77c\ubbf8\ud130\ub97c \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc791\uc5c5\uc774 \ud5c8\uc6a9\ud558\ub294 \ud55c \ud56d\uc0c1 \uc5f0\uc9c8 \uc0c1\ud0dc\uc5d0\uc11c \ub4dc\ub9b4\ub9c1\ud558\uc2ed\uc2dc\uc624<\/h2>\n\n\n\n

\ub4dc\ub9b4\ub9c1\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uacbd\ud654 \uc804\uc5d0 \uc218\ud589\ub429\ub2c8\ub2e4. \uacf5\uc791\ubb3c\ub85c\uc11c \uacf5\uad6c\uac15\uc5d0 \ub300\ud55c \uacf5\uac1c\ub41c \ud30c\ub77c\ubbf8\ud130\ub294 196 HB\uc640 241 HB\uc758 \ub450 \uac00\uc9c0 \uacbd\ub3c4 \uc218\uc900\uc5d0 \uc788\uc73c\uba70, \uc774\ub294 \uc911\uc694\ud55c \uacbd\uacc4\uc785\ub2c8\ub2e4. 241 HB\uc758 \uc77c\ubc18\uc801\uc778 \uacf5\uad6c\uac15\uc740 \uc57d 24 HRC\uc774\ubbc0\ub85c, \uc77c\ubc18 \ud2b8\uc704\uc2a4\ud2b8 \ub4dc\ub9b4 \ud45c\ub294 \uc5f0\uc9c8 \ubc0f \uacbd\uc9c8 \uacbd\ud654 \ubc94\uc704\ub9cc\uc744 \ud3ec\ud568\ud558\uba70, 50 HRC \uc774\uc0c1\uc758 \ub2e4\uc774\uac15\uc740 \uc774 \ubc94\uc704\ub97c \ubc97\uc5b4\ub0a9\ub2c8\ub2e4. \uadf8 \uc774\uc0c1\uc5d0\uc11c\ub294 \ucf54\ubc1c\ud2b8 \uace0\uc18d\ub3c4\uac15, \uc194\ub9ac\ub4dc \uce74\ubc14\uc774\ub4dc, \ub610\ub294 \ub4dc\ub9b4\ub9c1 \uc774\uc678\uc758 \uacf5\uc815\uc73c\ub85c \uc120\ud0dd\uc774 \uc774\ub3d9\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub4dc\ub9b4\ub9c1 \uc7ac\ub8cc<\/th>\uacbd\ub3c4, HB<\/th>\uacbd\ub3c4, HR<\/th>\uc808\uc0ad \uacf5\uad6c \uc7ac\ub8cc<\/th>\uc8fc\ubcc0 \uc18d\ub3c4, m\/min (sfm)<\/th>\uc774\uc1a1 \uc18d\ub3c4 \ucf54\ub4dc<\/th>\ud5ec\ub9ad\uc2a4 \uac01\ub3c4, deg<\/th>\ud3ec\uc778\ud2b8 \uac01\ub3c4, deg<\/th><\/tr><\/thead>
\uacf5\uad6c\uac15<\/td>196<\/td>94 HRB<\/td>HSS<\/td>18 (60)<\/td>Y<\/td>25-35<\/td>118<\/td><\/tr>
\uacf5\uad6c\uac15<\/td>241<\/td>24 HRC<\/td>HSS<\/td>15 (50)<\/td>Y<\/td>25-35<\/td>118<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\ud2b8\uc704\uc2a4\ud2b8 \ub4dc\ub9b4\ub85c \uacf5\uad6c\uac15\uc5d0 \uad6c\uba4d\uc744 \uac00\uacf5\ud558\uae30 \uc704\ud55c \uad8c\uc7a5 \uc791\ub3d9 \ud30c\ub77c\ubbf8\ud130\ub85c, ASM Handbook, Volume 16, Machining\uc758 Drilling \uc139\uc158 Table 6(a)\uc5d0\uc11c \ubc1c\ucdcc\ud588\uc2b5\ub2c8\ub2e4. \ub450 \ud589\uc740 \uc6d0\ubcf8\uc5d0\uc11c \uacf5\uad6c\uac15\uc774 \ub098\uc5f4\ub41c \ub450 \uac00\uc9c0 \uacbd\ub3c4 \uc218\uc900\uc785\ub2c8\ub2e4. HSS\ub294 \uace0\uc18d\ub3c4 \uacf5\uad6c\uac15\uc785\ub2c8\ub2e4. \uc774\uc1a1 \uc18d\ub3c4\ub294 \ub2e4\uc74c \ud45c\uc758 \ucf54\ub4dc\ub85c \uc8fc\uc5b4\uc9c0\uba70, 118\ub3c4\ub294 \ud3ec\ud568\ub41c \ud3ec\uc778\ud2b8 \uac01\ub3c4\uc785\ub2c8\ub2e4.<\/em><\/p>\n\n\n\n

\uc774\uc1a1 \ucf54\ub4dc<\/th>\ub4dc\ub9b4 \uc9c1\uacbd\uc5d0 \ub530\ub978 \uc774\uc1a1 \uc18d\ub3c4, mm\/rev (in.\/rev):<\/th><\/tr>
3.2 mm (1\/8 in.)<\/th>6.4 mm (1\/4 in.)<\/th>12.7 mm (1\/2 in.)<\/th>19.1 mm (3\/4 in.)<\/th>25.4 mm (1 in.)<\/th><\/tr><\/thead>
Y<\/td>0.08 (0.003)<\/td>0.13 (0.005)<\/td>0.20 (0.008)<\/td>0.267 (0.0105)<\/td>0.317 (0.0125)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\uacf5\uad6c\uac15 \ud589\uc5d0 \ub300\ud55c \uc774\uc1a1 \uc18d\ub3c4\ub85c, ASM Handbook, Volume 16, Machining\uc758 Drilling \uc139\uc158 Table 6(b)\uc5d0\uc11c \ubc1c\ucdcc\ud588\uc2b5\ub2c8\ub2e4. \uc774\uc1a1\uc740 2\ub0a0 \ub4dc\ub9b4\uc758 \ud68c\uc804\ub2f9\uc73c\ub85c \uc8fc\uc5b4\uc9c0\uba70 \uc9c1\uacbd\uc5d0 \ub530\ub77c \uc99d\uac00\ud569\ub2c8\ub2e4. \uac15\uc131\uc774 \ub0ae\uac70\ub098 \uc808\uc0ad \uc720\uccb4\uac00 \uc81c\ud55c\uc801\uc778 \uacbd\uc6b0, \uc6d0\ubcf8\uc5d0\uc11c\ub294 \uc774\ubcf4\ub2e4 \ub0ae\uc740 \uc18d\ub3c4\uc640 \uc774\uc1a1\uc744 \uad8c\uc7a5\ud569\ub2c8\ub2e4.<\/em><\/p>\n\n\n\n

H11 \ub2e4\uc774\uac15\uc5d0\uc11c 50 HRC\uc758 \uacbd\ub3c4 \ub2e8\uacc4<\/h2>\n\n\n\n

\uac00\uc7a5 \uba85\ud655\ud55c \uacf5\uac1c \uc0ac\ub840\ub294 H11 \uc5f4\uac04 \uae08\ud615\uac15\uc5d0 \uad00\ud55c \uac83\uc785\ub2c8\ub2e4. 50 HRC \uc774\ud558\uc758 H11\uc758 \uacbd\uc6b0, \uc911\uc791\uc5c5\uc6a9\uc73c\ub85c \uc81c\uc791\ub41c M33, M34 \ubc0f M36 \uace0\uc18d\ub3c4 \uacf5\uad6c\uac15 \ub4dc\ub9b4\uc774 \uc88b\uc740 \uacb0\uacfc\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc774\ub4e4\uc740 \ud3ec\uc9c0\ud2f0\ube0c \ub4dc\ub77c\uc774\ube0c \uc7a5\ube44\uc5d0\uc11c 7.6~9.1 m\/min (25~30 sfm)\uc758 \ub4dc\ub9b4 \uc18d\ub3c4\uc640 0.013~0.018 mm\/rev (0.0005~0.0007 in.\/rev)\uc758 \uc774\uc1a1\uc73c\ub85c \uc6b4\uc804\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

50 HRC\ubcf4\ub2e4 \ub2e8\ub2e8\ud55c \uc7ac\ub8cc\ub294 \ub3d9\uc77c\ud55c \uc791\uc5c5\uc5d0\uc11c \uc9e7\uc740 \ud50c\ub8e8\ud2b8\ub97c \uac00\uc9c4 \uc194\ub9ac\ub4dc \uce74\ubc14\uc774\ub4dc \ub4dc\ub9b4\uc744 \ud544\uc694\ub85c \ud588\uc2b5\ub2c8\ub2e4. 12~15 m\/min (40~50 sfm)\uc758 \uc18d\ub3c4\uc640 0.013~0.025 mm\/rev (0.0005~0.001 in.\/rev)\uc758 \uc774\uc1a1\uc774 \ub9cc\uc871\uc2a4\ub7ec\uc6b4 \uacb0\uacfc\ub97c \uc0dd\uc131\ud588\uc2b5\ub2c8\ub2e4. \ub4dc\ub9b4 \uc124\uacc4\ub294 \ub610\ud55c \uc57d 6.4 mm (1\/4 in.)\uc758 \uc9c1\uacbd\uc5d0\uc11c \ubd84\ud560\ub429\ub2c8\ub2e4. 2\uac1c\uc758 \ud50c\ub8e8\ud2b8\ub97c \uac00\uc9c4 \ud2b8\uc704\uc2a4\ud2b8 \ub4dc\ub9b4\uc740 \uadf8 \ud06c\uae30 \ubbf8\ub9cc\uc758 \uad6c\uba4d\uc5d0 \uc0ac\uc6a9\ub418\uba70, \uc9c1\uc120 \ud50c\ub8e8\ud2b8 \ub4dc\ub9b4\uc740 \uadf8 \ud06c\uae30 \uc774\uc0c1\uc758 \uad6c\uba4d\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

54 HRC \uc2dc\ud2b8\uc6a9 \uce74\ubc14\uc774\ub4dc \ub4f1\uae09 \uc120\ud0dd<\/h2>\n\n\n\n

\uc774 \uacbd\ub3c4\uc5d0\uc11c \uce74\ubc14\uc774\ub4dc \ub4f1\uae09\uc740 \uc18d\ub3c4\ub9cc\ud07c \uc911\uc694\ud569\ub2c8\ub2e4. 5% \ud06c\ub86c\uacfc 1.5% \ubab0\ub9ac\ube0c\ub374\uc744 \ud568\uc720\ud558\uace0 54 HRC\ub85c \uc5f4\ucc98\ub9ac\ub41c H11 \uac15 \uc2dc\ud2b8\uc5d0\uc11c \uc138 \uac00\uc9c0 \ub4f1\uae09\uc774 \ud568\uaed8 \ud14c\uc2a4\ud2b8\ub418\uc5c8\uc2b5\ub2c8\ub2e4. 2.10 mm (0.083 in.) \ub450\uaed8\uc758 \ub450 \uc2dc\ud2b8\ub97c \uc808\uc0ad \uc720\uccb4 \uc5c6\uc774 6.35 mm (0.250 in.) \uc9c1\uacbd\uc758 \uce74\ubc14\uc774\ub4dc \ud301 \ub4dc\ub9b4\ub85c \ud55c \ubc88\uc5d0 \ub4dc\ub9b4\ub9c1\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub354 \uc5f0\uc9c8\uc778 6% \ucf54\ubc1c\ud2b8 \ub4f1\uae09\uc740 \ub9c8\ubaa8, \uacfc\ub3c4\ud55c \uc5f0\uc18c \ubc0f \uce58\ud551\uc73c\ub85c \uc2e4\ud328\ud588\uc73c\uba70 \uacb0\uad6d \ud30c\uc190\ub418\uc5c8\uc2b5\ub2c8\ub2e4. 3% \ucf54\ubc1c\ud2b8\ub9cc \ud568\uc720\ud55c \uac00\uc7a5 \ub2e8\ub2e8\ud55c \ub4f1\uae09\uc740 \ub108\ubb34 \ucde8\uc131\uc774 \uc788\uc5b4 \ub4dc\ub9b4\ub9c1 \uc911 \uacfc\ub3c4\ud55c \uce58\ud551\uacfc \ud30c\uc190\uc73c\ub85c \uc2e4\ud328\ud588\uc73c\uba70, \ucde8\uae09 \uc911\uc5d0\ub3c4 \uce58\ud551\uacfc \ud30c\uc190\uc774 \ubc1c\uc0dd\ud588\uc2b5\ub2c8\ub2e4. \uc131\uacf5\ud55c \ub4f1\uae09\uc740 \ub450 6% \ucf54\ubc1c\ud2b8 \ub4f1\uae09 \uc911 \ub354 \ub2e8\ub2e8\ud55c \uac83\uc73c\ub85c, \ud14c\uc2a4\ud2b8 \ud6c4 \uc57d\uac04\uc758 \ub9c8\ubaa8\ub9cc \ubcf4\uc600\uace0 \uc0dd\uc0b0\uc5d0 \ud22c\uc785\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uadf8 \uacbd\ub3c4\ub294 \ub354 \ubbf8\uc138\ud55c \uc785\uc790 \ud06c\uae30\uc5d0\uc11c \ube44\ub86f\ub418\uc5c8\uc73c\uba70, \uc774\ub294 \uc785\uc790 \uc0ac\uc774\uc758 \ub354 \uc5f0\uc9c8\uc778 \ucf54\ubc1c\ud2b8 \ub808\uc774\ud06c\uc758 \ud06c\uae30\ub97c \uac10\uc18c\uc2dc\ucf30\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub4f1\uae09<\/th>\uc870\uc131, %<\/th>\uacbd\ub3c4, HRA<\/th>\uc785\uc790 \ud06c\uae30, μm (μin.)<\/th><\/tr>
W<\/th>Ta<\/th>C<\/th>Co<\/th><\/tr><\/thead>
C-1<\/td>88.25<\/td>. . .<\/td>5.75<\/td>6.0<\/td>91.2<\/td>3 (120)<\/td><\/tr>
C-2<\/td>88.25<\/td>. . .<\/td>5.75<\/td>6.0<\/td>91.8<\/td>1-2 (40-80)<\/td><\/tr>
C-3<\/td>87.00<\/td>4.0<\/td>6.00<\/td>3.0<\/td>92.2<\/td>1-3 (40-120)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

54 HRC\uc758 H11 \uac15 \uc2dc\ud2b8 \ub4dc\ub9b4\ub9c1\uc5d0\uc11c \ud14c\uc2a4\ud2b8\ub41c \uc138 \uac00\uc9c0 \uce74\ubc14\uc774\ub4dc \ub4f1\uae09\uc758 \uc870\uc131, \uacbd\ub3c4 \ubc0f \uc785\uc790 \ud06c\uae30\ub85c, ASM Handbook, Volume 16, Machining\uc758 Drilling \uc139\uc158 \ub4dc\ub9b4\ub9c1 \uc608\uc81c\uc5d0\uc11c \ubc1c\ucdcc\ud588\uc2b5\ub2c8\ub2e4. C-1\uacfc C-2\ub294 \ub3d9\uc77c\ud55c 6% \ucf54\ubc1c\ud2b8\uc640 \ub3d9\uc77c\ud55c \ud145\uc2a4\ud150 \ubc0f \ud0c4\uc18c \uc218\uc900\uc744 \uac00\uc9c0\uba70, C-2\ub294 \ub354 \ubbf8\uc138\ud55c \uc785\uc790 \ud06c\uae30\ub85c \uc778\ud574 \uc785\uc790 \uc0ac\uc774\uc5d0 \ub354 \uc791\uc740 \ucf54\ubc1c\ud2b8 \ub808\uc774\ud06c\uac00 \ub0a8\uc544 \ub450 \ub4f1\uae09 \uc911 \ub354 \ub2e8\ub2e8\ud569\ub2c8\ub2e4.<\/em><\/p>\n\n\n\n

\uc774 \uad50\ud6c8\uc740 \uc804\uccb4 \ubc94\uc704\uc5d0 \uc801\uc6a9\ub429\ub2c8\ub2e4. \ub192\uc740 \uacbd\ub3c4\uc5d0\uc11c\ub294 \uac00\uc7a5 \uac15\ud55c \ubc14\uc778\ub354 \ud568\ub7c9\uc774 \ub2f5\uc774 \uc544\ub2c8\uba70, \ucd5c\uc0c1\uc758 \ub4f1\uae09\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uac00\uc7a5 \uc801\uc740 \ucf54\ubc1c\ud2b8 \ub610\ub294 \uac00\uc7a5 \ub192\uc740 \uacbd\ub3c4 \uc218\uce58\ub97c \uac00\uc9c4 \uac83\uc774 \uc544\ub2c8\ub77c \uc8fc\uc5b4\uc9c4 \ucf54\ubc1c\ud2b8 \uc218\uc900 \ub0b4\uc5d0\uc11c \uac00\uc7a5 \ubbf8\uc138\ud55c \uc785\uc790\ub97c \uac00\uc9c4 \uac83\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc9c8\ud654\ub41c \uace0\uc18d\ub3c4\uac15 \ub4dc\ub9b4<\/h2>\n\n\n\n

\uacbd\uc9c8 \uacbd\ud654 \ubc94\uc704\uc758 \uacbd\uc6b0, \ud45c\uba74 \ucc98\ub9ac\ub294 \ub4f1\uae09 \ubcc0\uacbd\ubcf4\ub2e4 \uc77c\ubc18 \uace0\uc18d\ub3c4\uac15 \ub4dc\ub9b4\uc744 \ub354 \uba40\ub9ac \uc774\ub04c \uc218 \uc788\uc2b5\ub2c8\ub2e4. 48~50 HRC\ub85c \uacbd\ud654\ub41c 4335 \uac15\uc5d0\uc11c \uc9c1\uacbd 6.91 mm (0.272 in.), \uae4a\uc774 15.75 mm (0.620 in.)\uc758 \ub9f9\ud640\uc744 \ub4dc\ub9b4\ub9c1\ud588\uc2b5\ub2c8\ub2e4. \uc5f0\uc0ad \uc0c1\ud0dc\uc5d0\uc11c \ub4dc\ub9b4\uc740 \uc5f0\uc0ad\ub2f9 1~4\uac1c\uc758 \uad6c\uba4d\uc744 \uc81c\uacf5\ud588\uc73c\uba70 16~20\uac1c \uad6c\uba4d\ub2f9 \ub4dc\ub9b4 1\uac1c\uc758 \ud30c\uc190\ub960\uc744 \ubcf4\uc600\uc2b5\ub2c8\ub2e4. \uc9c8\ud654 \ud6c4 \ub3d9\uc77c\ud55c \ub4dc\ub9b4\uc740 \uc5f0\uc0ad\ub2f9 18~20\uac1c\uc758 \uad6c\uba4d\uc744 \uc81c\uacf5\ud588\uc73c\uba70 \ud30c\uc190\uc740 50~60\uac1c \uad6c\uba4d\ub2f9 \ub4dc\ub9b4 1\uac1c\ub85c \uac10\uc18c\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub4dc\ub9b4\uc740 \uc194\ub9ac\ub4dc \uc5f4\ucc98\ub9ac \uace0\uc18d\ub3c4\uac15\uc73c\ub85c \uc5f0\uc0ad\ub41c \ud45c\uc900 \uc911\uc791\uc5c5\uc6a9 \ub4dc\ub9b4\ub85c, \uac01\uac01 \ubd84\ud560 \ubd80\ubd84\uc5d0 3~4\ub3c4\uc758 \ud3ec\uc9c0\ud2f0\ube0c \ucd95\ubc29\ud5a5 \ub808\uc774\ud06c\ub97c \uac00\uc9c4 \ubd84\ud560 \ud3ec\uc778\ud2b8, 135\ub3c4\uc758 \ud3ec\ud568\ub41c \ud3ec\uc778\ud2b8 \uac01\ub3c4, 5~7\ub3c4\uc758 \ub9bd \ub9b4\ub9ac\ud504 \uac01\ub3c4\ub97c \uac00\uc9c0\uba70 0.8 mm (1\/32 in.)\ub85c \ud3c9\ud3c9\ud558\uac8c \uc5f0\uc0ad\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \ub4dc\ub9b4\ub9c1\uc740 147 rev\/min, 3.20 m\/min (10.5 sfm)\uc758 \ud45c\uba74 \uc18d\ub3c4, 0.05 mm\/rev (0.002 in.\/rev)\uc758 \uc774\uc1a1\uc73c\ub85c \uc2e4\ud589\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

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\uacbd\ud654 \uacf5\uad6c\uac15 \ub4dc\ub9b4\ub9c1, \uc778\uc1c4 \uac00\ub2a5\ud55c PDF<\/strong><\/p>\n\n

\uacf5\uad6c\uac15\uc6a9 \ud2b8\uc704\uc2a4\ud2b8 \ub4dc\ub9b4 \ud30c\ub77c\ubbf8\ud130, H11\uc758 \uacbd\ub3c4 \ub2e8\uacc4, \ucd08\uacbd \ub4f1\uae09 \uc120\uc815 \ubc0f \uc9c8\ud654 \ub4dc\ub9b4 \ub370\uc774\ud130\ub97c \ub2f9\uc0ac \uc5f0\ub77d\ucc98 \uc815\ubcf4\uc640 \ud568\uaed8 \ud558\ub098\uc758 PDF\uc5d0 \ub2f4\uc558\uc2b5\ub2c8\ub2e4.<\/p>\n\n

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PDF \ub2e4\uc6b4\ub85c\ub4dc<\/a><\/div>\n\n<\/div>\n<\/div>\n\n\n\n

\ub4f1\uae09 \ubc0f \uc7ac\uace0<\/h2>\n\n\n\n

H11\uc740 \uacbd\ud654 \ub4dc\ub9b4\ub9c1 \uc608\uc2dc\uac00 \uc124\uc815\ub41c \uac15\uc885\uc774\uba70, \uadf8 \uc870\uc131\uacfc \uc791\uc5c5 \uacbd\ub3c4\ub294 \ub2e4\uc74c\uc5d0 \uc788\uc2b5\ub2c8\ub2e4 H11 \ud234 \uc2a4\ud2f8 \ud398\uc774\uc9c0<\/a>. \ub300\ubd80\ubd84\uc758 \uae08\ud615 \ubc0f \ubab0\ub4dc \uc791\uc5c5\uc5d0 \uc0ac\uc6a9\ub418\ub294 \ud06c\ub86c \uc5f4\uac04 \uac00\uacf5\uac15\uc740 \ub2e4\uc74c\uc5d0 \ub2e4\ub8e8\uc5b4\uc838 \uc788\uc73c\uba70 H13 \uacf5\uad6c\uac15 \uae30\uacc4\uac00\uacf5\uc131 \ud398\uc774\uc9c0<\/a>, \uc774\ub294 \uc5b4\ub2d0\ub9c1 \uc0c1\ud0dc\uc640 \uacbd\ud654 \uc0c1\ud0dc\ub97c \uad6c\ubd84\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

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\ub4dc\ub9b4\uc758 \uc9c8\ud654\ub294 \uacf5\uad6c\uc5d0 \uc0ac\uc6a9\ub418\ub294 \uac83\uacfc \ub3d9\uc77c\ud55c \ud45c\uba74 \ucc98\ub9ac\uc774\uba70, \uadf8 \uacf5\uc815\uacfc \ud615\uc131\ub418\ub294 \uacbd\ud654\uce35\uc740 \ub2e4\uc74c\uc5d0 \uc124\uba85\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4 \uacf5\uad6c\uac15 \uc9c8\ud654 \uac00\uc774\ub4dc<\/a>. \ub4dc\ub9b4 \ub300\uc2e0 EDM\uc73c\ub85c \ub9c8\ubb34\ub9ac\ub418\ub294 \uad6c\uba4d\uc758 \uacbd\uc6b0, \ubcbd\uba74\uc5d0 \ub0a8\ub294 \ubc31\uc0c9\uce35\uc740 \ub2e4\uc74c\uc5d0 \uc124\uba85\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4 EDM \uacf5\uad6c\uac15 \ubc31\uc0c9\uce35 \ud398\uc774\uc9c0<\/a>.<\/p>\n\n\n\n

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\uacf5\uad6c\uac15\uc6a9 \ud2b8\uc704\uc2a4\ud2b8 \ub4dc\ub9b4 \ud30c\ub77c\ubbf8\ud130, H11\uc758 \uacbd\ub3c4 \ub2e8\uacc4, \ucd08\uacbd \ub4f1\uae09 \uc120\uc815 \ubc0f \uc9c8\ud654 \ub4dc\ub9b4 \ub370\uc774\ud130\ub97c \ub2f9\uc0ac \uc5f0\ub77d\ucc98 \uc815\ubcf4\uc640 \ud568\uaed8 \ud558\ub098\uc758 PDF\uc5d0 \ub2f4\uc558\uc2b5\ub2c8\ub2e4.<\/p>\n\n

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PDF \ub2e4\uc6b4\ub85c\ub4dc<\/a><\/div>\n\n<\/div>\n<\/div>\n\n\n\n

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\uc774 \ud398\uc774\uc9c0\ub294 \uacf5\uac1c\ub41c \uc2e4\ubb34 \uad00\ud589\uc758 \ucc38\uace0 \uc694\uc57d\uc774\uba70 Aobo Steel\uc758 \uc0ac\uc591\uc774 \uc544\ub2d9\ub2c8\ub2e4. \uc18d\ub3c4\ub294 \uc6d0\ubcf8 \ud45c\uc5d0\uc11c \uc778\uc6a9\ud55c \uac83\uc774\uba70, \ub4dc\ub9b4 \uc124\uacc4, \uae30\uacc4 \uac15\uc131, \uad6c\uba4d \uae4a\uc774 \ubc0f \uc808\uc0ad\uc720 \uacf5\uae09\uc5d0 \ub530\ub77c \ubaa8\ub450 \ub2ec\ub77c\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ucd5c\uc885 \uc870\uac74\uc740 \uc2e4\uc81c \uc791\uc5c5\uc5d0\uc11c \uc2dc\ud5d8\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

\ucd9c\ucc98: ASM Handbook, Volume 16, Machining, ASM International, 1989.<\/p>","protected":false},"excerpt":{"rendered":"

Drilling Hardened Tool Steel A hole is the cheapest feature to put in a tool steel part while the steel is still soft, and the most expensive one to put in after hardening. 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Hardened Tool Steel A hole is the cheapest feature to put in a tool steel part while the steel is still soft, and the most expensive one to put in after hardening. 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