钻头、扩孔钻和铰刀的磨钝标准及耐用度
<DIV align=center><TABLE cellSpacing=0 cellPadding=0 width="100%" border=1>
<TBODY>
<TR>
<TD width="2%" rowSpan=10>
<DIV>磨<BR><BR>钝<BR><BR>限<BR><BR>度</DIV></TD>
<TD width="7%" rowSpan=4>
<DIV align=center>刀具<BR><BR>材料</DIV></TD>
<TD width="15%" rowSpan=4>
<DIV>加 工 材 料</DIV></TD>
<TD width="19%" colSpan=2>
<DIV align=center>钻 头</DIV></TD>
<TD width="27%" colSpan=4>
<DIV align=center> 扩 孔 钻 </DIV></TD>
<TD width="20%" colSpan=4>
<DIV align=center>铰 刀</DIV></TD></TR>
<TR>
<TD width="67%" colSpan=10>
<DIV align=center>直 径 d<SUB>0</SUB> (mm)</DIV></TD></TR>
<TR>
<TD width="7%">
<DIV align=center>≤20</DIV></TD>
<TD width="10%">
<DIV align=center>20</DIV></TD>
<TD width="12%" colSpan=2>
<DIV align=center>≤20</DIV></TD>
<TD width="14%" colSpan=2>
<DIV align=center>＞20</DIV></TD>
<TD width="10%" colSpan=2>
<DIV align=center>≤20</DIV></TD>
<TD width="9%" colSpan=2>
<DIV align=center>＞20</DIV></TD></TR>
<TR>
<TD width="67%" colSpan=10>
<DIV align=center>后刀面最大磨损限度（mm）</DIV></TD></TR>
<TR>
<TD width="7%" rowSpan=4>
<DIV align=center>高速钢</DIV></TD>
<TD width="15%">
<DIV align=center>钢</DIV></TD>
<TD width="7%">
<DIV align=center>0.4～0.8</DIV></TD>
<TD width="10%">
<DIV align=center>0.4～0.8</DIV></TD>
<TD width="12%" colSpan=2>
<DIV align=center>0.4～0.8</DIV></TD>
<TD width="14%" colSpan=2>
<DIV align=center>0.4～0.8</DIV></TD>
<TD width="10%" colSpan=2>
<DIV align=center>0.4～0.8</DIV></TD>
<TD width="9%" colSpan=2>
<DIV align=center>0.4～0.8</DIV></TD></TR>
<TR>
<TD width="15%">
<DIV align=center>不锈钢、耐热刚</DIV></TD>
<TD width="19%" colSpan=2>
<DIV align=center>0.3～0.8</DIV></TD>
<TD width="27%" colSpan=4>
<DIV align=center>-</DIV></TD>
<TD width="20%" colSpan=4>
<DIV align=center>-</DIV></TD></TR>
<TR>
<TD width="15%">
<DIV align=center>钛合金</DIV></TD>
<TD width="19%" colSpan=2>
<DIV align=center>0.4～0.5</DIV></TD>
<TD width="27%" colSpan=4>
<DIV align=center> </DIV></TD>
<TD width="20%" colSpan=4>
<DIV align=center>-</DIV></TD></TR>
<TR>
<TD width="15%">
<DIV align=center>铸铁</DIV></TD>
<TD width="7%">
<DIV align=center>0.5～0.8</DIV></TD>
<TD width="10%">
<DIV align=center>0.8～1.2</DIV></TD>
<TD width="12%" colSpan=2>
<DIV align=center>0.6～0.9</DIV></TD>
<TD width="14%" colSpan=2>
<DIV align=center>0.9～1.4</DIV></TD>
<TD width="10%" colSpan=2>
<DIV align=center>0.4～0.6</DIV></TD>
<TD width="9%" colSpan=2>
<DIV align=center>0.6～0.9</DIV></TD></TR>
<TR>
<TD width="7%" rowSpan=2>
<DIV align=center>硬 质 合 金</DIV></TD>
<TD width="15%">
<DIV align=center>钢（扩钻）、铸铁</DIV></TD>
<TD width="7%">
<DIV align=center>0.4～0.8</DIV></TD>
<TD width="10%">
<DIV align=center>0.8～1.2</DIV></TD>
<TD width="12%" colSpan=2>
<DIV align=center>0.6～0.8</DIV></TD>
<TD width="14%" colSpan=2>
<DIV align=center>0.8～1.4</DIV></TD>
<TD width="10%" colSpan=2>
<DIV align=center>0.4～0.6</DIV></TD>
<TD width="9%" colSpan=2>
<DIV align=center>0.6～0.8</DIV></TD></TR>
<TR>
<TD width="15%">
<DIV>淬硬钢</DIV></TD>
<TD width="19%" colSpan=2>
<DIV align=center>-</DIV></TD>
<TD width="27%" colSpan=4>
<DIV align=center>0.5～0.7</DIV></TD>
<TD width="20%" colSpan=4>
<DIV align=center>0.3～0.35</DIV></TD></TR>
<TR>
<TD width="2%" rowSpan=12>
<DIV>刀具耐用度单刀加工</DIV></TD>
<TD width="7%" rowSpan=3>
<DIV align=center>刀具类型</DIV></TD>
<TD width="15%" rowSpan=3>
<DIV align=center>加工材料</DIV></TD>
<TD width="19%" colSpan=2 rowSpan=3>
<DIV align=center>刀具材料</DIV></TD>
<TD width="48%" colSpan=8>
<DIV align=center>刀 具 直 径 d<SUB>0</SUB>（m）</DIV></TD></TR>
<TR>
<TD width="5%">
<DIV align=center>＜6</DIV></TD>
<TD width="6%">
<DIV align=center>6～10</DIV></TD>
<TD width="6%">
<DIV align=center>11～20</DIV></TD>
<TD width="7%">
<DIV align=center>21～30</DIV></TD>
<TD width="5%">
<DIV align=center>31～40</DIV></TD>
<TD width="4%">
<DIV align=center>41～50</DIV></TD>
<TD width="4%">
<DIV align=center>51～60</DIV></TD>
<TD width="4%">
<DIV align=center>61～80</DIV></TD></TR>
<TR>
<TD width="48%" colSpan=8>
<DIV align=center>刀 具 寿 命 T（min）</DIV></TD></TR>
<TR>
<TD width="7%" rowSpan=4>
<DIV align=center>钻头<BR>(钻孔及扩钻)</DIV></TD>
<TD width="15%">
<DIV align=center>结构钢及钢铸件</DIV></TD>
<TD width="19%" colSpan=2>
<DIV align=center>高速钢</DIV></TD>
<TD width="5%">
<DIV align=center>15</DIV></TD>
<TD width="6%">
<DIV align=center>25</DIV></TD>
<TD width="6%">
<DIV align=center>45</DIV></TD>
<TD width="7%">
<DIV align=center>50</DIV></TD>
<TD width="5%">
<DIV align=center>70</DIV></TD>
<TD width="4%">
<DIV align=center>90</DIV></TD>
<TD width="4%">
<DIV align=center>110</DIV></TD>
<TD width="4%">
<DIV align=center>-</DIV></TD></TR>
<TR>
<TD width="15%">
<DIV align=center>不锈钢及耐热钢</DIV></TD>
<TD width="19%" colSpan=2>
<DIV align=center>高速钢</DIV></TD>
<TD width="5%">
<DIV align=center>6</DIV></TD>
<TD width="6%">
<DIV align=center>8</DIV></TD>
<TD width="6%">
<DIV align=center>15</DIV></TD>
<TD width="7%">
<DIV align=center>25</DIV></TD>
<TD width="5%">
<DIV align=center>-</DIV></TD>
<TD width="4%">
<DIV align=center>-</DIV></TD>
<TD width="4%">
<DIV align=center>-</DIV></TD>
<TD width="4%">
<DIV align=center>-</DIV></TD></TR>
<TR>
<TD width="15%" rowSpan=2>
<DIV align=center>铸铁、铜合金、铝合金</DIV></TD>
<TD width="19%" colSpan=2>
<DIV align=center>高速钢</DIV></TD>
<TD width="5%" rowSpan=2>
<DIV align=center>20</DIV></TD>
<TD width="6%" rowSpan=2>
<DIV align=center>35</DIV></TD>
<TD width="6%" rowSpan=2>
<DIV align=center>60</DIV></TD>
<TD width="7%" rowSpan=2>
<DIV align=center>75</DIV></TD>
<TD width="5%" rowSpan=2>
<DIV align=center>110</DIV></TD>
<TD width="4%" rowSpan=2>
<DIV align=center>140</DIV></TD>
<TD width="4%" rowSpan=2>
<DIV align=center>170</DIV></TD>
<TD width="4%" rowSpan=2>
<DIV align=center>-</DIV></TD></TR>
<TR>
<TD width="19%" colSpan=2>
<DIV align=center>硬质合金</DIV></TD></TR>
<TR>
<TD width="7%">
<DIV align=center>扩孔钻（扩孔） </DIV>
<DIV align=center> </DIV></TD>
<TD width="15%">
<DIV align=center>结构钢及铸钢，铸铁、铜合金及铝合金</DIV></TD>
<TD width="19%" colSpan=2>
<DIV align=center>高速钢、硬质合金</DIV></TD>
<TD width="5%">
<DIV align=center>-</DIV></TD>
<TD width="6%">
<DIV align=center>-</DIV></TD>
<TD width="6%">
<DIV align=center>30</DIV></TD>
<TD width="7%">
<DIV align=center>40</DIV></TD>
<TD width="5%">
<DIV align=center>50</DIV></TD>
<TD width="4%">
<DIV align=center>60</DIV></TD>
<TD width="4%">
<DIV align=center>80</DIV></TD>
<TD width="4%">
<DIV align=center>100</DIV></TD></TR>
<TR>
<TD width="7%" rowSpan=4>
<DIV align=center>铰刀（铰孔）</DIV></TD>
<TD width="15%" rowSpan=2>
<DIV align=center>结构钢、铸钢</DIV></TD>
<TD width="19%" colSpan=2>
<DIV align=center>高速钢</DIV></TD>
<TD width="5%">
<DIV align=center>-</DIV></TD>
<TD width="6%">
<DIV align=center>-</DIV></TD>
<TD width="6%">
<DIV align=center>40</DIV></TD>
<TD width="13%" colSpan=2>
<DIV align=center>80</DIV></TD>
<TD width="14%" colSpan=3>
<DIV align=center>120</DIV></TD></TR>
<TR>
<TD width="19%" colSpan=2>
<DIV align=center>硬质合金</DIV></TD>
<TD width="5%">
<DIV align=center>-</DIV></TD>
<TD width="6%">
<DIV align=center>20</DIV></TD>
<TD width="6%">
<DIV align=center>30</DIV></TD>
<TD width="7%">
<DIV align=center>50</DIV></TD>
<TD width="5%">
<DIV align=center>70</DIV></TD>
<TD width="4%">
<DIV align=center>90</DIV></TD>
<TD width="4%">
<DIV align=center>110</DIV></TD>
<TD width="4%">
<DIV align=center>140</DIV></TD></TR>
<TR>
<TD width="15%" rowSpan=2>
<DIV align=center>铸铁、铜合金、铝合金</DIV></TD>
<TD width="19%" colSpan=2>
<DIV align=center>高速钢</DIV></TD>
<TD width="5%">
<DIV align=center>-</DIV></TD>
<TD width="6%">
<DIV align=center>-</DIV></TD>
<TD width="6%">
<DIV align=center>60</DIV></TD>
<TD width="13%" colSpan=2>
<DIV align=center>120</DIV></TD>
<TD width="14%" colSpan=3>
<DIV align=center>180</DIV></TD></TR>
<TR>
<TD width="19%" colSpan=2>
<DIV align=center>硬质合金</DIV></TD>
<TD width="5%">
<DIV align=center>-</DIV></TD>
<TD width="6%">
<DIV align=center>-</DIV></TD>
<TD width="6%">
<DIV align=center>45</DIV></TD>
<TD width="7%">
<DIV align=center>75</DIV></TD>
<TD width="5%">
<DIV align=center>105</DIV></TD>
<TD width="4%">
<DIV align=center>135</DIV></TD>
<TD width="4%">
<DIV align=center>165</DIV></TD>
<TD width="4%">
<DIV align=center>210</DIV></TD></TR>
<TR>
<TD width="2%" rowSpan=8>
<DIV>刀具耐用度多刀加工</DIV></TD>
<TD width="91%" colSpan=12>
<DIV align=center>刀 具 数 量</DIV></TD></TR>
<TR>
<TD width="23%" colSpan=2>
<DIV align=center>3</DIV></TD>
<TD width="24%" colSpan=3>
<DIV align=center>5</DIV></TD>
<TD width="13%" colSpan=2>
<DIV align=center>8</DIV></TD>
<TD width="18%" colSpan=3>
<DIV align=center>10</DIV></TD>
<TD width="9%" colSpan=2>
<DIV align=center>≥15</DIV></TD></TR>
<TR>
<TD width="91%" colSpan=12>
<DIV align=center>刀 具 寿 命</DIV></TD></TR>
<TR>
<TD width="23%" colSpan=2>
<DIV align=center>50</DIV></TD>
<TD width="24%" colSpan=3>
<DIV align=center>80</DIV></TD>
<TD width="13%" colSpan=2>
<DIV align=center>100</DIV></TD>
<TD width="18%" colSpan=3>
<DIV align=center>120</DIV></TD>
<TD width="9%" colSpan=2>
<DIV align=center>140</DIV></TD></TR>
<TR>
<TD width="23%" colSpan=2>
<DIV align=center>80</DIV></TD>
<TD width="24%" colSpan=3>
<DIV align=center>110</DIV></TD>
<TD width="13%" colSpan=2>
<DIV align=center>140</DIV></TD>
<TD width="18%" colSpan=3>
<DIV align=center>150</DIV></TD>
<TD width="9%" colSpan=2>
<DIV align=center>170</DIV></TD></TR>
<TR>
<TD width="23%" colSpan=2>
<DIV align=center>100</DIV></TD>
<TD width="24%" colSpan=3>
<DIV align=center>130</DIV></TD>
<TD width="13%" colSpan=2>
<DIV align=center>170</DIV></TD>
<TD width="18%" colSpan=3>
<DIV align=center>180</DIV></TD>
<TD width="9%" colSpan=2>
<DIV align=center>200</DIV></TD></TR>
<TR>
<TD width="23%" colSpan=2>
<DIV align=center>120</DIV></TD>
<TD width="24%" colSpan=3>
<DIV align=center>160</DIV></TD>
<TD width="13%" colSpan=2>
<DIV align=center>200</DIV></TD>
<TD width="18%" colSpan=3>
<DIV align=center>220</DIV></TD>
<TD width="9%" colSpan=2>
<DIV align=center>250</DIV></TD></TR>
<TR>
<TD width="23%" colSpan=2>
<DIV align=center>150</DIV></TD>
<TD width="24%" colSpan=3>
<DIV align=center>200</DIV></TD>
<TD width="13%" colSpan=2>
<DIV align=center>240</DIV></TD>
<TD width="18%" colSpan=3>
<DIV align=center>260</DIV></TD>
<TD width="9%" colSpan=2>
<DIV align=center>300</DIV></TD></TR>
<TR>
<TD>
<DIV>-</DIV></TD>
<TD>
<DIV> </DIV></TD>
<TD>
<DIV> </DIV></TD>
<TD>
<DIV> </DIV></TD>
<TD>
<DIV> </DIV></TD>
<TD>
<DIV> </DIV></TD>
<TD>
<DIV> </DIV></TD>
<TD>
<DIV> </DIV></TD>
<TD>
<DIV> </DIV></TD>
<TD>
<DIV> </DIV></TD>
<TD>
<DIV> </DIV></TD>
<TD>
<DIV> </DIV></TD>
<TD>
<DIV> </DIV></TD></TR></TBODY></TABLE></DIV>
<DIV>注: <BR>进行多刀加工时，如扩孔钻及刀头的直径大于60mm，则随调整复杂程度的不同，刀具寿命取为T＝150～300mim.</DIV>
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