1、無屑攻牙前鑽頭使對照表不同比率之差別下孔徑不同比率之差別下孔徑規格 牙距 2級用精度 100% 90% 80% 70% 規格 牙距2級用精度 100% 90% 80% 70%M1 0.250.2 43 0.860.89 0.870.90 0.890.91 0.900.92M1.1 0.250.2 43 0.960.99 0.971.00 0.991.01 1.001.02M91.2510.750.577778.298.438.578.728.368.498.628.748.438.558.668.778.508.608.708.80M1.2 0.250.2 43 1.061.09 1.071.
2、10 1.091.11 1.101.12M1.4 0.30.2 43 1.231.29 1.251.30 1.261.31 1.281.32M1.6 0.350.2 43 1.404.19 1.421.50 1.441.51 1.461.52M101.51.2510.750.5777769.159.299.439.579.729.239.369.499.629.749.329.439.559.669.779.409.509.609.709.80M1.7 0.350.2 44 1.501.59 1.521.60 1.541.61 1.561.62M1.8 0.350.2 43 1.601.69
3、1.621.70 1.641.71 1.661.72M111.510.75108810.1510.4310.5710.2310.4910.6210.3210.5510.6610.4010.6010.70M2 0.40.25 44 1.771.86 1.801.87 1.821.89 1.841.91M2.2 0.450.25 44 1.942.06 1.972.07 2.002.09 2.022.10M12 1.751.51.251888811.0111.1511.2911.4311.1111.2311.3611.4911.2111.3211.4311.5511.3111.4011.5011.
4、60M2.3 0.40.25 44 2.072.16 2.102.17 2.122.19 2.142.20M2.5 0.450.35 44 2.242.30 2.272.32 2.302.34 2.322.36M14 21.51.2511098812.8713.1513.2913.4312.9813.2313.3613.4913.0913.3213.4313.5513.2113.4013.5013.60M2.6 0.450.35 45 2.342.40 2.372.42 2.402.44 2.422.46 M15 1.51 98 14.1514.43 14.2314.49 14.3214.55
5、 14.4014.60M30.60.50.355552.662.722.802.692.742.822.732.772.842.762.802.86M16 21.51109814.8715.1515.4314.9815.2315.4915.0915.3215.5515.2115.4015.60M3.5 0.60.35 55 3.163.30 3.193.32 3.233.34 3.263.36 M17 1.51 119 16.1516.43 16.2316.49 16.3216.55 16.4016.60M40.750.70.56663.573.603.723.623.643.743.663.
6、683.773.703.723.80M18 2.521.51111110916.5816.8717.1517.4316.7216.9817.2317.4916.8717.0917.3217.5517.0117.2117.4017.60M4.5 0.750.5 66 4.074.22 4.124.24 4.164.27 4.204.30M50.90.80.56664.494.554.724.544.594.744.594.644.774.644.684.80M20 2.521.51111110918.5818.8719.1519.4318.7218.9819.2319.4918.87193.09
7、19.3219.5519.0119.2119.4019.60M5.5 0.90.5 66 4.995.22 5.045.24 5.095.27 5.145.30M610.750.57665.435.575.725.495.625.745.555.665.775.605.705.80M22 2.521.51111110920.5820.8721.1521.4320.7220.9821.2321.4920.8721.0921.3221.5521.0121.2121.4021.60M710.750.57666.436.576.726.496.626.746.556.666.776.606.706.8
8、0M24 21.511110922.8723.1523.4322.9823.2323.4923.0923.3223.5523.2123.4023.60M80.2510.750.577767.297.437.577.727.367.497.627.747.437.557.667.777.507.607.707.80注：1.確定下孔徑參數並試著加工,此表單尺寸只提供參考2.精確度標準,確定以螺帽 80%為基準*3.除不鏽鋼.青銅,均用無屑攻牙,孔值下差取“90%“欄. 材質 調質記號 硬度範圍(HV)SUS301 1/4H 270-2901/2H 300-3603/4H(一般) 370-420H
9、430-480EH 490-510材質 調質記號 硬度範圍(HV)SUS304 1/4H(一般) 150-1801/2H 270-2903/4H 300-360H 370-390材質 調質記號 硬度範圍(HV)SUS410 240-250材質 調質記號 硬度範圍(HV)SUS420 J2 200-210材質 調質記號 硬度範圍(HV)SUS430 150-180材質 調質記號 硬度範圍(HV)SUS631 0 150-180材質 調質記號 硬度範圍(HV)C7521R H 190-210材質 調質記號 硬度範圍(HV)C7701R H 220-240金屬材料沖裁模刃口間隙軟鋁 紫銅.黃銅.軟銅
10、(0.08-0.2%C)硬鋁.硅鋼片.中等硬度鋼(0.3-0.4%C)硬鋼(0.5-0.6%C) 特硬鋼HV280以上初 始 間 隙 值 Z最小 最大 最小 最大 最小 最大 最小 最大 最小 最大材料厚度t% 雙面 t%雙面 t%雙面 t% 雙面 t%雙面 t%雙面 t%雙面 t%雙面 t%雙面 t%雙面0.10.150.20.30.40.50.60.70.80.91.040.0040.0060.0080.0120.0160.0200.0240.0280.0320.0360.04060.0060.0090.0120.0180.0240.0300.0360.0420.0480.0540.060
11、50.0050.00750.0100.0150.0200.0250.0300.0350.0400.0450.05070.0070.0100.0140.0210.0280.0350.0420.0490.0560.0630.07060.0060.0090.0120.0180.0240.0300.0360.0420.0480.0540.06080.0080.0120.0160.0240.0320.0400.0480.0560.0640.0720.08070.0070.01050.0140.0210.0280.0350.0420.0490.0560.0630.07090.0090.01350.0180
12、.0270.0360.0450.0540.0630.0720.0810.09080.0080.0120.0160.0240.0320.040.0480.0560.0640.0720.080100.010.0150.020.030.040.050.060.070.080.090.101.21.51.82.050.0600.0750.0900.10070.0840.1050.1260.14060.0720.0900.1080.12080.0960.1200.1440.16070.0340.1050.1260.1409 0.1080.1350.1620.18080.0960.1200.1440.16
13、0100.1200.1500.1800.20090.1100.1400.1600.180110.1320.1650.2000.2402.22.52.83.060.1320.1500.1680.18080.1760.2000.2240.2407 0.1540.1750.1960.21090.1980.2250.2520.2708 0.1760.2000.2240.240100.2200.2500.2800.30090.1980.2250.2520.270110.2420.2750.3080.330100.2200.2500.2800.300120.2600.3000.3300.3603.54.0
14、4.55.070.2450.2800.3150.35090.3150.3600.4050.45080.2800.3200.3600.400100.3500.4000.4500.50090.3150.3600.4050.450110.3850.4400.4950.550100.3500.4000.4500.500120.4200.4800.5400.600110.3850.4400.5000.550130.4550.5200.5850.6506.07.0 80.4800.560 100.6000.700 90.5400.630 110.6600.770 100.6000.700 120.7200
15、.840 110.6600.77013 0.7800.910 120.7200.840 140.8400.9808.09.010.090.7200.8100.920110.8800.9901.100100.8000.9001.000120.9601.0801.200110.8800.9901.100131.0401.1701.300120.9601.0801.200141.1201.2601.400131.0401.1701.300151.2001.3501.500注:1.初始間隙的最小值,相當於間隙的公稱數值。2.初始間隙的最大值,是考慮到凸模和凹模的製造公差所增加的數值。飛鏢系列沖壓間隙參
16、考表材 質 SK7 S50C SPCC飛鏢特征 料 厚 2.0t 2.5t 2.0t 2.5t沖裁間隙 0.15 0.19 0.13 0.17刀尖處間隙 0.10 0.13 0.08 0.11刀尖壓斜角 最近邊料處間隙 0.20 0.24 0.17 0.22沖裁間隙 0.15 0.19 0.13 0.17刀尖處間隙 0.10 0.13 0.08 0.11二齒刀尖不壓斜角 最近邊料處間隙 0.20 0.24 0.17 0.22沖裁間隙 0.15 0.19 0.13 0.17五 七齒 齒 刀尖處間隙 0.10 0.13 0.08 0.11注：1、表中所注均為單邊間隙，單位 mm。2、依此間隙沖壓時，刀尖處展開直徑比其公稱直徑大 0.20mm。3、最近邊料處指二齒飛鏢排樣中四分圓點處最近的一段區域，寬約 8-12mm。
