切削技术切削工艺;铣尖齿与梯形收缩齿时分度头的仰角ф
<TABLE class=table1 borderColor=#b5dba2 cellSpacing=0 cellPadding=0 width="100%" border=1><TBODY>
<TR bgColor=#fdfbea>
<TD class=blk12 width="20%" rowSpan=2>
<P align=center>齿数z</P></TD>
<TD class=blk12 align=middle width="80%" colSpan=4>齿形角θ</TD></TR>
<TR bgColor=#fdfbea>
<TD class=blk12 width="20%">
<P align=center>40°</P></TD>
<TD class=blk12 width="20%">
<P align=center>45°</P></TD>
<TD class=blk12 width="20%">
<P align=center>60°</P></TD>
<TD class=blk12 width="20%">
<P align=center>90°</P></TD></TR>
<TR>
<TD>5</TD>
<TD>26°47ˊ</TD>
<TD>38°20ˊ</TD>
<TD>55°45ˊ</TD>
<TD>71°02ˊ</TD></TR>
<TR>
<TD>6</TD>
<TD>42°36ˊ</TD>
<TD>49°42ˊ</TD>
<TD>62°21ˊ</TD>
<TD>74°27ˊ</TD></TR>
<TR>
<TD>7</TD>
<TD>51°10ˊ</TD>
<TD>56°34ˊ</TD>
<TD>66°42ˊ</TD>
<TD>76°48ˊ</TD></TR>
<TR>
<TD>8</TD>
<TD>26°22ˊ</TD>
<TD>61°18ˊ</TD>
<TD>69°50ˊ</TD>
<TD>78°31ˊ</TD></TR>
<TR>
<TD>9</TD>
<TD>61°01ˊ</TD>
<TD>64°48ˊ</TD>
<TD>72°13ˊ</TD>
<TD>79°50ˊ</TD></TR>
<TR>
<TD>10</TD>
<TD>64°12ˊ</TD>
<TD>67°31ˊ</TD>
<TD>74°04ˊ</TD>
<TD>80°53ˊ</TD></TR>
<TR>
<TD>11</TD>
<TD>66°44ˊ</TD>
<TD>69°41ˊ</TD>
<TD>75°35ˊ</TD>
<TD>81°44ˊ</TD></TR>
<TR>
<TD>12</TD>
<TD>68°48ˊ</TD>
<TD>71°28ˊ</TD>
<TD>76°49ˊ</TD>
<TD>82°26ˊ</TD></TR>
<TR>
<TD>13</TD>
<TD>70°31ˊ</TD>
<TD>72°57ˊ</TD>
<TD>77°51ˊ</TD>
<TD>83°01ˊ</TD></TR>
<TR>
<TD>14</TD>
<TD>71°58ˊ</TD>
<TD>74°13ˊ</TD>
<TD>78°44ˊ</TD>
<TD>83°31ˊ</TD></TR></TBODY></TABLE>
<TABLE class=table1 borderColor=#b5dba2 cellSpacing=0 cellPadding=0 width="100%" border=1>
<TBODY>
<TR bgColor=#fdfbea>
<TD class=blk12 width="20%" rowSpan=2>
<P align=center>齿数z</P></TD>
<TD class=blk12 align=middle width="80%" colSpan=4>齿形角θ</TD></TR>
<TR bgColor=#fdfbea>
<TD class=blk12 width="20%">
<P align=center>40°</P></TD>
<TD class=blk12 width="20%">
<P align=center>45°</P></TD>
<TD class=blk12 width="20%">
<P align=center>60°</P></TD>
<TD class=blk12 width="20%">
<P align=center>90°</P></TD></TR>
<TR>
<TD>25</TD>
<TD>80°03ˊ</TD>
<TD>81°16ˊ</TD>
<TD>83°45ˊ</TD>
<TD>86°23ˊ</TD></TR>
<TR>
<TD>26</TD>
<TD>80°26ˊ</TD>
<TD>81°36ˊ</TD>
<TD>83°59ˊ</TD>
<TD>86°31ˊ</TD></TR>
<TR>
<TD>27</TD>
<TD>80°48ˊ</TD>
<TD>81°55ˊ</TD>
<TD>84°12ˊ</TD>
<TD>86°39ˊ</TD></TR>
<TR>
<TD>28</TD>
<TD>80°07ˊ</TD>
<TD>82°12ˊ</TD>
<TD>84°25ˊ</TD>
<TD>86°47ˊ</TD></TR>
<TR>
<TD>29</TD>
<TD>81°26ˊ</TD>
<TD>82°29ˊ</TD>
<TD>84°36ˊ</TD>
<TD>86°53ˊ</TD></TR>
<TR>
<TD>30</TD>
<TD>81°43ˊ</TD>
<TD>82°44ˊ</TD>
<TD>84°47ˊ</TD>
<TD>86°59ˊ</TD></TR>
<TR>
<TD>31</TD>
<TD>81°59ˊ</TD>
<TD>82°58ˊ</TD>
<TD>84°57ˊ</TD>
<TD>87°05ˊ</TD></TR>
<TR>
<TD>32</TD>
<TD>82°15ˊ</TD>
<TD>83°11ˊ</TD>
<TD>85°07ˊ</TD>
<TD>87°11ˊ</TD></TR>
<TR>
<TD>33</TD>
<TD>82°29ˊ</TD>
<TD>83°24ˊ</TD>
<TD>85°16ˊ</TD>
<TD>87°16ˊ</TD></TR>
<TR>
<TD>34</TD>
<TD>82°42ˊ</TD>
<TD>83°36ˊ</TD>
<TD>85°24ˊ</TD>
<TD>87°21ˊ</TD></TR></TBODY></TABLE>
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