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<title>数控加工中心和各种工序的精度要求</title>
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 <div class="p15-infocontent-1-con endit-content"><h3 style="margin-top:0px;margin-bottom:1.4em;">
	<span style="color:#121212;font-family:'-apple-system, BlinkMacSystemFont, font-size:medium;white-space:normal;background-color:#FFFFFF;">&nbsp; &nbsp; &nbsp; <span style="text-align:left;color:#000000;text-transform:none;text-indent:32px;letter-spacing:normal;font-size:14px;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;word-spacing:0px;white-space:normal;orphans:2;-webkit-text-stroke-width:0px;overflow-wrap:break-word;">精度是用来表示工件产品的精细程度，是评价加工表面几何参数的专用术语，也是衡量</span> <a href="https://www.skjgzx.org/" style="color:#333333;font-family:&amp;font-size:16px;font-style:normal;font-variant:normal;font-weight:bold;letter-spacing:normal;orphans:2;text-align:left;text-decoration:none;text-indent:32px;text-transform:none;-webkit-text-stroke-width:0px;white-space:normal;word-spacing:0px;"><span style="color:#000000;font-size:14px;overflow-wrap:break-word;">数控加工中心</span></a><span style="text-align:left;color:#000000;text-transform:none;text-indent:32px;letter-spacing:normal;font-size:14px;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;word-spacing:0px;white-space:normal;orphans:2;-webkit-text-stroke-width:0px;overflow-wrap:break-word;">性能的重要指标。一般情况下，加工精度用公差等级衡量，等级越低，精度越高。车、铣、刨、磨、钻、镗是<strong><a class="attach inline_attach" href="http://www.keding168.com/product/lxcjgz.html" target="_blank" title="数控加工中心">数控加工中心</a></strong>的常见加工形式，那么这些加工工序应达到多少的加工精度呢？</span></span>
</h3>
<h3 style="margin-top:0px;margin-bottom:1.4em;">
	<span style="color:#000000;">数控加工中心和各种工序的精度要求</span>&nbsp;<span style="color:#000000;"><br>
</span>
</h3>
<p class="readability-styled" style="margin-top:0px;margin-bottom:0px;padding:0px;list-style:none;word-spacing:-1.5px;font-family:&quot;color:#333333;white-space:normal;background-color:rgba(255, 255, 255, 0.9);display:inline;">
    <span style="color:#000000;"> 
	</span></p><p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
		<span style="color:#000000;font-size:14px;">1.车削精度</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">车削加工是指工件旋转，车刀在平面内作直线或曲线移动的切削加工，用以加工工件的内外圆柱面、端面、圆锥面、成型面和螺纹等。</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">车削加工的表面粗糙度为1.6—0.8μm。</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">粗车削要求在不降低切速的条件下，采用大切削深度和大进给量以提高车削效率，表面粗糙度要求为20-10um。</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">半精车和精车尽量采用高速而较小的进给量和切削深度，表面粗糙度为10-0.16um。</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">高精度车床上用精细修研的金刚石车刀，可以高速精车有色金属工件,表面粗糙度为0.04-0.01um，这种车削也被称为“镜面车削”。</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">2.铣削精度</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">铣削是指使用旋转的多刃刀具切削工件，是高效率的加工方法。适于加工平面、沟槽以及各种花键、齿轮和螺纹模具等特殊形面的加工。</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">铣削的加工精度一般表面粗糙度为6.3—1.6μm。</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">粗铣时的表面粗糙度5—20μm。</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">半精铣时的表面粗糙度为2.5—10μm。</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">精铣时的表面粗糙度0.63—5μm。</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">3.刨削精度</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">刨削加工是用刨刀对工件作水平相对直线往复运动的切削加工方法，主要用于零件的外形加工。</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">刨削加工表面粗糙度为Ra6.3—1.6μm。</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">粗刨加工表面粗糙度为25—12.5μm。</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">半精刨加工表面粗糙度为6.2—3.2μm。</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">精刨加工表面粗糙度为3.2—1.6μm。</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">4.磨削精度</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">磨削是指用磨料，磨具切除工件上多余材料的加工方法，属于精加工在机械制造行业中应用比较广泛。</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">磨削通常用于半精加工和精加工，表面粗糙度一般磨削为1.25—0.16μm。</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">精密磨削表面粗糙度为0.16—0.04μm。</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">超精密磨削表面粗糙度为0.04—0.01μm。</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">镜面磨削表面粗糙度可达0.01μm以下。</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">5.镗削</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">镗削是一种用刀具扩大孔或其它圆形轮廓的内径切削工艺，其应用范围一般从半粗加工到精加工，所用刀具通常为单刃镗刀（称为镗杆）。</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">对钢铁材料的镗孔精度一般可达2.5—0.16μm。</span>
</p>
<p style="margin:10px 0px 0px;padding:0px;border:0px;line-height:2em;text-indent:2em;font-size:16px;color:#3B3B3B;font-family:&quot;Microsoft Yahei&quot;, SimSun, sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;background-color:#FFFFFF;text-decoration-style:initial;text-decoration-color:initial;">
    <span style="color:#000000;font-size:14px;">精密镗削的加工精度能达到0.63—0.08μm。</span>
</p>

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