成考院校在线答案
- 2022-09-12 [判断] <p class="MsoNormal">6、 <span style="font-family:Microsoft Yahei;color:windowtext;">由于粗加工对精度要求不高，所以粗基准可多次使用。</span><span style="color:windowtext;"> </span><span style="color:windowtext;"> </span></p>
- 2022-09-12 [判断] <p style="margin:0cm;margin-bottom:.0001pt;line-height:20.0pt;mso-line-height-rule: exactly">7、<span style="font-size:10.5pt;color:windowtext">所有零件在制定工艺过程时都应划分加工阶段。<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="margin-left:430.5pt;text-indent:-430.5pt; mso-char-indent-count:-41.0;line-height:20.0pt;mso-line-height-rule:exactly; mso-pagination:widow-orphan;tab-stops:-10.5pt">14、<span style="mso-bidi-font-size: 10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";color:windowtext">在加工过程中，若采用近似的刀具轮廓而造成的加工误差即为原理误差。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext"><span style="mso-spacerun:yes"> </span></span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;color:windowtext;mso-font-kerning:0pt"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p style="margin:0cm;margin-bottom:.0001pt;line-height:20.0pt;mso-line-height-rule: exactly">3、<span style="font-size:10.5pt;color:windowtext">“一面两孔”常用作箱体零件的定位方式。<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="line-height:18.0pt;mso-line-height-rule:exactly; mso-pagination:widow-orphan;layout-grid-mode:char">19、<span style="font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; color:windowtext">金属切削加工后，表面层金属会产生残余应力。不管是拉应力还是压应力都有害。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal">2、 <span style="font-family:Microsoft Yahei;color:windowtext;">不完全定位在零件的定位方案中是不允许出现的。</span><span style="color:windowtext;"> </span><span style="color:windowtext;"> </span></p>
- 2022-09-12 [判断] <p style="margin:0cm;margin-bottom:.0001pt;line-height:20.0pt;mso-line-height-rule: exactly">13、<span style="font-size:10.5pt;color:windowtext">工件的残余应力一般不会影响加工精度。<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt; color:windowtext"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="line-height:18.0pt;mso-line-height-rule:exactly; mso-pagination:widow-orphan;layout-grid-mode:char">8、<span style="font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; color:windowtext">在车床上车削细长轴时，容易出现腰鼓形的圆柱度误差。</span><span lang="EN-US" style="color:windowtext"><span style="mso-spacerun:yes"> </span></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="line-height:20.0pt;mso-line-height-rule:exactly; mso-pagination:widow-orphan;tab-stops:-10.5pt">16、<span style="mso-bidi-font-size: 10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";color:windowtext">切削成形运动指的是工件与刀具的相对运动。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="line-height:20.0pt;mso-line-height-rule:exactly; mso-pagination:widow-orphan;tab-stops:-10.5pt">15、<span style="mso-bidi-font-size: 10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";color:windowtext">选择定位基准时，应遵循“基准重合”原则，以保证加工精度。“基准重合”是指加工过程中尽量选择同一个基准为定位基准。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext"><span style="mso-spacerun:yes"> </span></span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;color:windowtext;mso-font-kerning:0pt"> <o:p></o:p></span></p>