GBT1438.2-1996锥柄长麻花钻.pdf

GB/T1438.2-1996续表1mmdd41莫氏圆锥号莫氏圆锥号h8h822.0030.5019128922.2530.7522.50231.0023936022.7519829631.2523.0031.5023.2531.7524836919831923.5032.0023.7532.5024839724.0033.0024.2533.5020632724.5034.0024.7534.5025740625.0035.0025.2535.5025.5036.0025.7536.5021433526741626.0037.0026.2537.5026.5038.0026.75338.50427.0039.0027742627.2539.5022234327.5040.0027.7540.5028.0041.0028.2541.5028743628.5042.0028.7542.5029.0043.0023035129.2543.5029.5044.0029844729.7544.5030.0045.0030.2523936045.50310459GB/T1438.2-1996续表1mmd莫氏圆锥号莫氏圆锥号h8h846.0048.5046.5049.0031045947.00449.5032147047.5050.0048.0032147042制造中间规格的麻花钻时，总长和沟槽长度按表2的规定。表2直径范围d莫氏圆锥号直径范围d今莫氏圆锥号5.00-5.307415521.2022.401912895.306.008016122.4023.021982966.006.708616723.02-23.601983196.707.509317423.60-25.002063277.508.5010018125.0026.5d21433518.509.5010718826.5028.002223439.5010.6011619728.00-30.0023035110.6011.8012520630.0031.5023936011.8013.2013421531.5031.7524836913.2014.0014222331.7533.5024839714.0015.0014724533.5035.5025740615.0016.0015325135.5037.5026741616.0017.0015925737.5040.0027742617.0018.0016526340.0042.5028743618.0019.0017126942.5045.0029844719.0020.0017727545.0047.5031045920.0021.2018428247.5050.003214704.3莫氏圆锥的尺寸和公差按GB/T1443。4.4标记示例：a.直径d=l0mm的右旋莫氏锥柄长麻花钻为：莫氏锥柄长麻花钻10GB/T1438.2-1996b.直径d=10mm的左旋莫氏锥柄长麻花钻为：莫氏锥柄长麻花钻10-LGB/T1438.2一1996c.高性能的莫氏锥柄长麻花钻应在直径前加“H”,如：H-10,其余标记方法与a条和b条相同。GB/T1438.2-1996附加说明：本标准由全国刀具标准化技术委员会提出。本标准由机械工业部成都工具研究所归口。本标准由机械工业部成都工具研究所负责起草。