实验二 车削加工切削力测量实验报告书(附指导书)

...wd......wd......wd...车削加工切削力测量实验报告书学号13120110姓名傅亥杰小组11时间2015年12月17日成绩上海大学生产工程实验中心2015-11一．实验概述切削过程中，会产生一系列物理现象，如切削变形、切削力、切削热与切削温度、刀具磨损等。对切削加工过程中的切削力、切削温度进展实时测量，是研究切削机理的根本实验手段和主要研究方法。通过对实测的切削力、进展分析处理，可以推断切削过程中的切削变形、刀具磨损、工件外表质量的变化机理。在此根基上，可进一步为切削用量优化，提高零件加工精度等提供实验数据支持。通过本实验可使同学熟悉制造技术工程中的根基实验技术和方法，理解设计手册中的设计参数的来由，在处理实际工程问题中能合理应用经历数据。二．实验目的与要求掌握车削用量υc、f、ap，对切削力及变形的影响。了解刀具角度对切削力及变形的影响。理解切削力测量方法的根本原理、了解所使用的设备和仪器。理解切削力经历公式推导的根本方法，掌握实验数据处理方法。三．实验系统组成实验系统由以下设备仪器组成1、微型数控车床KC0628S2、车床测力刀架系统〔图1〕，包括〔1〕车削测力刀架〔2〕动态应变仪〔3〕USB数据采集卡〔4〕台式计算机USB数采器虚拟仪器USB数采器虚拟仪器台式计算机USB线放大器微型车床放大器微型车床测力刀架测力刀架图1四、实验数据记录与数据处理1.切削力测量记录表1实验条件工件材料铝工件直径30刀具构造材料规格前角后角副后角主偏角副偏角刃倾角外圆车刀硬质合金序号转速(rpm)切削速度(m/min)切削深度(mm)进给量(mm/r)主切削力Fz(N)背向力Fx(N)110000.20.017.634.82210000.20.0158.615.23310000.20.029.445.67410000.20.0259.615.76510000.40.0110.555.85610000.40.01511.065.98710000.40.0212.366.44810000.40.02513.126.72910111213141516主切削力背向力切削深度0.45.104244 9.462369主切削力背向力切削深度0.45.104244 9.462369 5.294295 9.661952 5.375688 9.829920 5.409004 9.969390 5.443481 10.059046 5.545985 10.068238 5.613217 10.263800 5.621966 10.175907 5.631707 10.313285 5.636297 10.327770 5.733246 10.384600 5.717103 10.489972 5.686838 10.457782 5.659846 10.383964 5.731133 10.459669 5.779314 10.433018 5.778206 10.509114 5.817272 10.566129 5.895627 10.571340 5.919424 10.595713 5.903320 10.675440 5.871256 10.617625 5.843430 10.548095 5.879406 10.465250 5.783670 10.332981 5.829569 10.323789 5.811809 10.271185 5.858751 10.533364 5.963563 10.487243 6.029934 10.554557 6.087087 10.625811 6.103152 10.701660 6.173252 10.752766 6.270475 10.793388 6.266107 10.891600 6.134003 10.694438 6.173630 10.865790 6.182562 10.718483 6.097753 10.677922 6.079015 10.789757 6.079472 10.825250 6.000609 10.755741 6.018173 10.641937 6.032947 10.807278 5.946364 10.673429 6.042153 10.795789 6.080776 10.854937 6.018799 10.667910 6.067788 10.859984 6.109150 10.754161 6.094415 10.794250 6.014587 10.936080 5.952467 11.182809 5.939962 11.210917 5.879262 11.013939 5.454877 10.639495 5.106369 10.017460 5.128693 10.035904 5.323021 10.307664 5.752596 10.898699 6.033755 11.183302 6.039114 11.183302 6.069666 11.150927 6.074869 11.199181 6.056014 11.211532 5.969809 11.057926 5.999148 11.146721 5.916295 11.115598 5.960681 11.056305 5.923532 11.048878 5.987243 11.029491 5.991403 11.204085 5.979524 11.054377 5.966549 11.055218 6.020272 11.120727 6.080802 11.199222 6.037224 11.193580 6.088743 11.336477 6.083371 11.371929 6.119999 11.217790 6.086331 11.205439 6.097636 11.322751 6.073930 11.223883 6.061947 11.153061 6.068010 11.340067 6.053693 11.244112主切削力背向力 切削深度0.23.976153 6.609549 4.210226 6.929296 4.434858 7.233862 4.523697 7.384083 4.625223 7.519101 4.653649 7.538550 4.680380 7.589062 4.789547 7.664028 4.806381 7.651144 4.788569 7.633685 4.813501 7.660910 4.801830 7.702907 4.747560 7.638691 4.811349 7.705861 4.901061 7.785321 4.860482 7.692402 4.899588 7.832898 4.928040 7.847609 4.934143 7.941779 4.927819 7.856000 4.910372 7.875613 4.981841 7.852471 4.960913 7.873459 4.924911 7.823338 4.838198 7.790450 4.926110 7.862134 4.972179 7.797426 5.021742 7.866094 5.103422 8.052136 5.129228 8.114424 5.240794 8.226341 5.380108 8.314828 5.399316 8.273692 5.271893 8.411706 5.353482 8.387558 5.290266 8.330646 5.266417 8.286392 5.203722 8.203855 5.207634 8.132088 5.132487 8.113336 5.121795 8.069780 5.104804 8.057655 5.157354 8.167972 5.116553 8.114855 5.074657 8.023885 5.078412 8.037467 5.083667 8.064590 5.108103 8.023783 5.097215 8.103653 5.068020 8.115922 5.103683 8.078500 5.119813 8.033651 5.133726 8.421410 5.106369 8.469029 5.120647 8.464802 4.829031 8.086029 4.389846 7.421176 4.216994 7.109102 4.257664 7.140923 4.749385 7.862565 5.113867 8.363595 5.278935 8.534742 5.320492 8.615618 5.369247 8.609689 5.340925 8.587962 5.338760 8.555279 5.361162 8.632667 5.293109 8.530578 5.239946 8.530926 5.230610 8.490530 5.231888 8.479615 5.206265 8.442911 5.316293 8.555936 5.303227 8.523910 5.284920 8.519191 5.280786 8.538784 5.253547 8.432325 5.248865 8.405797 5.310308 8.538107 5.276940 8.497013 5.281712 8.473522 5.263874 8.577786 5.291140 8.516032 5.315198 8.538600 5.385220 8.681599 5.322513 8.569230 5.388675 8.642105 5.372676 8.610858 5.381360 8.626266 5.322148 8.594937force25主切削力背向力5.20191 9.6118725.18003 9.6303365.218548 9.5733225.129501 9.515835 切削深度0.45.137886 9.5846065.133687 9.514055.142476 9.5420145.323491 9.6498275.245058 9.6398975.193721 9.5484355.695783 10.8695455.760981 10.8246145.613138 10.8064785.68423 10.7544695.737627 10.8962575.780918 10.8465265.677045 10.7973685.676524 10.831615.718798 10.8713095.704819 10.8124276.143392 11.815396.104808 11.7815596.021433 11.6951646.011353 11.6853166.030847 11.6507466.022306 11.7646536.013557 11.7130346.004625 11.6080116.111262 11.7825436.124015 11.6599386.279824 12.4156176.191299 12.3535346.267828 12.4484436.251568 12.3670756.237981 12.3160516.323768 12.4754426.289513 12.302926.299475 12.4057486.308342 12.3184316.259652 12.315312整理采集点并运用MATLAB对数据处理如下：2.请按指数规律拟合主切削力或背刀力和切削深度、进给量的关系，建设切削力的经历公式。答：对已有数据运用最小二乘法进展拟合，得出主〔背〕切削力关于进给量的双对数y=ax+b曲线及参数,其中1、2为主切削力，3、4为背向力：k1=0.4654b1=3.4671k2=0.2234b2=2.5543k3=0.4354b3=3.6742k4=0.2853b4=3.6897对已有数据运用最小二乘法进展拟合〔由于只有两个数据，故直接取直线求解〕，得出主〔背〕切削力关于切削深度的双对数y=ax+b的参数，其中1、2为主切削力，3、4为背向力：k1=0.4467b1=0.9579k2=0.3488b2=0.9368k3=0.5689