數(shù)控加工課程設(shè)計說明書范本

1、34/34數(shù)控加工課程設(shè)計講明書一、分析零件圖紙，確定總體加工方案（一）、圖紙分析：該圖是一復(fù)雜軸類零件，零件部分地點(diǎn)較為復(fù)雜，部分加工精度較高，采納數(shù)控車削加上鉆削、滾齒、插齒綜合完成。該零件由外圓柱面、孔、倒角、內(nèi)齒輪，齒輪軸、槽、階梯組成。其中零件最大外徑為19mm,長度為104mm.選擇毛坯尺寸為114x22mm的棒料。（二）、精度等級、表面粗糙度分析：考慮到左右兩端齒輪齒面粗糙度1.6，滾齒機(jī)滾齒后要倒角磨齒；外圓表面粗糙度要求最高為0.8，尺寸精度也易于達(dá)到，因此外圓精車即可達(dá)到要求。同軸度及各圓跳度都要求要裝夾次數(shù)減少。因此，外圓以兩頂尖定位，一次裝夾完成粗精加工。為滿足同軸度要

2、求，打孔時應(yīng)夾外徑為13.9的外圓。（三）、材料和熱處理分析：零件材料為31CrMoV9是齒輪鋼，預(yù)備熱處理為調(diào)質(zhì)，回火溫度600630（四）、總體方案：先對毛坯預(yù)備熱處理（調(diào)質(zhì)處理）；用數(shù)控車床粗精車兩端面打中心孔，再以兩中心孔定位，粗車外圓輪廓，精車右端外圓輪廓，切槽。再以外徑為13.9的槽定位，粗精車左端外圓，鉆鉸孔、鏜孔割內(nèi)槽；最后再滾齒，插齒；最終熱處理，再上磨齒機(jī)進(jìn)行磨齒；完成整個零件的加工。 二、確定加工工藝方案（一）裝夾方式及量具選擇：數(shù)控車床夾具使用三爪卡盤自動定心夾具及頂尖；Y3150E滾齒機(jī)使用專用夾具，插齒機(jī)使用專用夾具，磨齒機(jī)使用專用夾具。量具有游標(biāo)卡尺，外徑千分尺，

3、百分表。 （二）加工順序：1.備料，下料尺寸22106的棒料，預(yù)備熱處理2.車，粗精車右端面，鉆中心孔3. 粗車，夾左端外圓頂中心孔定位，粗車右端外圓各部，留單邊余量0.24、精車，夾左端外圓頂中心孔定位，精車右端外圓各部至圖紙所示。5、切1.1mm寬的槽6、用3.5mm切槽刀切3.5mm處，4.6mm處以及12mm處，加之外徑為13.9的T型槽至圖紙所示。7、掉頭夾直徑12處外圓,粗精車左端端面及外圓8、鉆鏜直徑為9的孔9、鏜直徑為12.5的孔。10、割寬5mm的內(nèi)槽。11、鉆直徑5和4的頂孔。12、銑鍵槽13、滾齒機(jī)滾右端齒14、插齒機(jī)插內(nèi)齒輪。15、倒角，倒棱16、最終熱處理17、磨齒機(jī)

4、磨齒18、終結(jié)檢驗（三），切削用量選擇（鏜車削）數(shù)控車削加工中的切削用量包括：背吃刀量、主軸轉(zhuǎn)速n或切削速度、進(jìn)給速度或進(jìn)給量f。這些參數(shù)均應(yīng)在機(jī)床給定的同意范圍內(nèi)選取。車削用量的選擇原則是粗車時，首先考慮選擇盡可能打的背吃刀量，其次選擇較大的進(jìn)給量f，最后確定一個合適的切削速度v。增大背吃刀量可使走刀次數(shù)減少，增大進(jìn)給量f有利于斷屑。精車時，加工精度和表面粗糙度要求較高，加工余量不大且較均勻，因此選擇精車的切削用量時，應(yīng)著重考慮如何保證加工質(zhì)量，并在此基礎(chǔ)上提高加工效率。因此，精車時應(yīng)選用較小的背吃刀量和進(jìn)給量f，并選用性能高的刀具材料和合理的幾何參數(shù)，以盡可能提高切削速度v.背吃刀量的確定

5、在工藝系統(tǒng)剛度和機(jī)床功率同意的情況下，應(yīng)盡可能選擇較大的背吃刀量，以減少進(jìn)給的次數(shù)。當(dāng)零件精度要求較高時，則應(yīng)考慮留出精車余量，其所留的精車余量比一般一般車削時所留余量小，常取0.10.5mm。（2）進(jìn)給量的確定式中，f進(jìn)給量，粗車時一般取為0.30.8mm/r,精車時常取0.10.3mm/r，切斷時常取0.050.2mm/r。（3）主軸轉(zhuǎn)速的確定 n（r/min）1.數(shù)控車削a.粗車端面 取 n= 50 m f = 0.3 mm/rb.精車端面 取 n = 80m f = 0.15b.粗車外輪廓,留單面余量0.2mm 取 n = 50 m f= 0.3 mm/r ap = 2 mmc.精車外

6、輪廓 取 n= 80 m/min f = 0.15 ap = 0.2 mmd.切槽取 n = 60m/min f = 0.1 mm/rf.預(yù)鉆孔8mm及打中心孔 取n = 500 r/min f = 0.2 mm/rg.鏜孔取 n =1500 r/min f = 0.22.滾齒機(jī)滾齒Vc = 0.7 m/sf = 1.5 mm/r刀具明細(xì)表序號刀具名稱刀具直徑刀補(bǔ)值190端面車刀D01293偏頭外圓車刀D0231.15mm割槽刀43.5mm割槽刀54mm割槽刀6高速鋼鉆頭87鏜刀8鏜刀D0893mm的內(nèi)切槽刀10滾刀D1011插齒刀D11三、數(shù)值換算1、公差對稱化換算：直徑公差帶代號公差大小/

7、mm上偏差下偏差對稱化后尺寸12g70.018-0.006-0.02411.985100-0.19.9516h70.0180-0.01815.99115.50-0.315.3513.90-0.0313.88516.80-0.116.757.80.0507.82517h80.0180-0.01816.99116.40-0.0416.389H100.0580.05809.02911.50.3011.6530.50.3030.65601060.51.10.101.1590.0509.02511.50-0.111.451.10.101.152、相關(guān)節(jié)點(diǎn)坐標(biāo)計算：如圖所示：通過坐標(biāo)標(biāo)注，各節(jié)點(diǎn)坐標(biāo)清清晰

8、楚。3、刀位點(diǎn)坐標(biāo)值的計算過程刀位點(diǎn)是指刀具的定位基準(zhǔn)點(diǎn)。車刀的刀位點(diǎn)是刀尖或刀尖圓弧中心；鉆頭的刀位點(diǎn)是鉆頭頂點(diǎn)。各類數(shù)控機(jī)床的對刀方法是不完全一樣的，這一內(nèi)容將結(jié)合各類機(jī)床分不討論。數(shù)控車床的刀位點(diǎn)是工件外形輪廓向外偏移一個刀具半徑值四、數(shù)控的工藝卡片及加工程序 O0001車左端面打中心孔加工步驟加工內(nèi)容刀具主軸轉(zhuǎn)速（m/min或r/min）進(jìn)給量備注1粗車端面，留精加工余量0.2T01: 90端面車刀500.32精車端面至圖紙要求T01800.153打中心孔T02: 直徑3.35中心鉆5000.2 O0002車外輪廓加工步驟加工內(nèi)容刀具主軸轉(zhuǎn)速（m/min或r/min）進(jìn)給量備注1粗車外

9、圓輪廓，留精加工余量0.2T01：93偏頭外圓車刀500.3G712精車外圓輪廓至圖紙要求T01：93偏頭外圓車刀800.15G703切1.1mm寬槽T02：1.1mm割槽刀（右刀尖）600.14切3.5mm寬槽及4.6mm滾花槽T03：3.5mm割槽刀（右刀尖）600.15切T型槽及其他槽T04：4mm割槽刀（右刀尖）600.1 O0003精車左端端面，外圓，鉆鏜孔加工步驟加工內(nèi)容刀具主軸轉(zhuǎn)速（m/min或r/min）進(jìn)給量備注1粗車外圓輪廓，留精加工余量0.2T01：93偏頭外圓車刀500.3G712精車外圓輪廓至圖紙要求T01：93偏頭外圓車刀800.15G703鉆底孔T02：直徑為8m

10、m高速鋼麻花鉆5000.24鏜孔T03：硬質(zhì)合金內(nèi)孔車刀5000.25鏜直徑為12.5mm的孔T04：硬質(zhì)合金內(nèi)孔車刀15000.26割內(nèi)槽T05：硬質(zhì)合金內(nèi)切槽刀600.1程序代碼如下：O0001N10 G54 F0.3 SN20 G50 S2000 ；最高轉(zhuǎn)速限制N30 G96 S50 ；恒線速度切削N40 G0 X24 Z0.2 ；快速定位接近工件N50 G1 X-2 ；粗切端面N60 G0 X24 Z1N80 G96 S80 ；精車恒線速度設(shè)定N90 Z0N100 G1 X-2 F0.15 ；精車端面N110 G0 X100 Z150 ；返回?fù)Q刀點(diǎn)N120 T0202 ；換2號刀具N1

11、30 G97 S500 ；取消恒線速度，設(shè)定轉(zhuǎn)速500r/min。N140 X0 Z5 N150 G1 Z-3.35 ； 鉆中心孔N160 G0 Z5N170 X100 Z150N180 M30 ；程序結(jié)束O0002N10 G54 F0.3 S G50 S2000 ；最高轉(zhuǎn)速限制 G96 S50 ；恒線速度切削 G0 X24 Z0.2 ；快速定位接近工件 G1 X-2 ；粗切端面 G0 X24 Z1 G96 S80 ；精車恒線速度設(shè)定 Z0 G1 X-2 F0.15 ；精車端面N40 G71 U2 R1 ；G71粗車輪廓循環(huán)N50 G71 P60 Q170 U0.4 W0.2 F0.3；粗車輪

12、廓循環(huán)參數(shù)設(shè)定N60 G0 G42 X8 Z2 FN70 G1 Z0N80 X9.95 Z-0.58N90 Z-15.72N100 G02 X10.36 Z-16.94 R3N110 G01 X11.985 Z-19N120 Z-36.5N130 X15.35N140 X15.991 Z-36.64N150 W-7.825 N160 X19N170 Z-106 ；循環(huán)結(jié)束N180 G0 X100 Z150N190 G96 S80 ；恒線速度切削N200 G70 P60 Q170 ；G70循環(huán)精車外輪廓N210 G0 X100 Z150 ；返回?fù)Q刀點(diǎn)N220 T0202 ；換1.1mm切槽刀N2

13、30 G96 S60 N240 G0 G40 X13 Z-27.5 FN250 G1 X11.45 N260 G0 X20N270 G0 X100 Z150 N280 T0303 ;換3.5mm切槽刀N290 G0 X17 Z-38.5 ;切3.5mm槽N300 G1 X-15.96N310 G0 X20N320 Z-31.9 ；切4.6mm槽N332 G1 X11.9N340 G0 X14 N345 Z-40.8N350 G1 X11.5 N355 Z-31.9 ；切4.6mm槽結(jié)束N360 G0 X20N370 G0 X100 Z150N380 T0404 ；換4mm切槽刀N390 G0

14、X20 Z-50.35N400 G1 X14.3 ；粗切直徑為13.9的T型槽及寬12mm槽N410 G0 X20 Z-53.5N420 G1 X14.3N430 G0 X20 N435 Z-53.5N440 G1 X14.3N450 G0 X20N451 Z-57N452 GN453 GN455 Z-60.6N460 G1 X14.3N470 G0 X20 N475 Z-69.5N480 G1 X17.2 ；T型槽粗切結(jié)束N490 G0 X20 N495 Z-72N500 G1 X17.2 ；粗切12mm槽N510 G0 X20 N515 Z-75N520 G1 X17.2N530 G0 X

15、20N531 Z-75N532 GN534 GN535 Z-77.5N540 G1 X17.2 ； 12mm槽粗車結(jié)束N550 G0 X20 Z-75N560 Z-45.5N570 G1 X19 ；精車T型槽N580 X14.32 Z-49.55N590 G02 X13.885 Z-50.35 R1.6N600 G01 Z-64.6N610 G2 X14.28 Z-65.35 R1.6N620 G1 X18.22 Z-69.06N630 G3 X17.68 Z-69.5 R0.15 ；精車T型槽結(jié)束N640 G1 X16.75 ; 精車12mm槽N645 Z-77.5N650 G0 X100

16、Z150N660 M30 ;程序結(jié)束O0003N10 G54 F0.3 SN20 G50 S2000 ；最高轉(zhuǎn)速限制N30 G96 S50 ；恒線速度切削N40 G71 U2 R1 N50 G71 P60 Q130 U0.4 W0.2 F0.3 ;G71粗車循環(huán)N60 G0 G42 X15.2 Z2 FN70 G1 Z0N80 X16.38 Z-1.39N90 Z-6N100 X16.991N110 Z-21.5N120 X18N130 Z-23 ；循環(huán)結(jié)束N140 G0 X19 Z2N150 G96 S80N160 G70 P60 Q130 ； G70精車循環(huán)N170 G0 X100 Z15

17、0 N180 T0202 ；換鉆頭N190 G0 G40 X0 Z25 S500 FN200 G1 Z-10N210 G0 Z2N220 G1 Z-20N230 G0 Z0N240 Z-18N250 G1 Z-35N260 G0 Z0 N270 Z-33N272 Z-50N274 GN276 Z-48N280 G1 Z-62N290 P1N300 G0 Z2 ；鉆孔結(jié)束N310 G0 X100 Z150N320 T0303 ；換鉸刀N330 G0 X0 Z5N340 G1 Z-62 ；鉸孔N350 P1N360 G0 Z2 N370 G0 X100 Z150 N380 T0404 ；換鏜刀N3

18、90 S1500 F0.2N400 G0 GN405 GN410 Z-13N420 X8N430 G0 Z2N440 X100 Z150N450 T0505 ；換內(nèi)切槽刀N460 G0 G40 S60 X8 ZN470 Z-27.65N480 G1 X11.1 ；切內(nèi)槽N490 G0 X8N500 W2 N510 G1 X11.1N520 G0 X8N530 Z-24.93N540 G1 X9N550 X11.65 Z-25.65N555 Z-27.65N560 X9 Z-28.37N570 G0 X8N580 Z5N590 G0 X100 Z150N600 M30 ;程序結(jié)束五、MASTER

19、CAM仿真1、刀具軌跡圖：2、加工后的輪廓圖：3、加工后立體圖：4、PRO/E制作的三維圖：5、MASTERCAM導(dǎo)出的加工程序：%O0000G21(PROGRAM NAME - MYMASTER22 DATE=DD-MM-YY - 20-11-11 TIME=HH:MM - 16:31)(TOOL - 1 OFFSET - 1)(LFACE OD ROUGH RIGHT - 80 DEG. INSERT - CNMG 12 04 08)G0T0101G97S3600M13G0G54X26.Z.5G50S3600G96S295G99G1X-1.6F.2G0Z2.5X26.Z0.G1X-1.6G

20、0Z2.G28U0.W0.M05T0100M01(TOOL - 2 OFFSET - 2)(LROUGH OD FINISH RIGHT - 35 DEG. INSERT - VNMG 16 04 08)G0T0202G97S3600M13G0G54X18.666Z.5G50S3600G96S295G1Z0.F.3Z-35.436G3X18.687Z-35.6R1.3G1Z-37.845X19.4Z-59.283Z-59.3Z-60.5Z-110.127X22.X24.828Z-108.713G0X26.666Z-35.246X19.394G1X18.687Z-35.6G2X18.4Z-35.

21、006R1.3F.1G1Z-23.3F.3Z-22.3G2X17.4Z-21.434R1.F.1G1Z-6.8F.3G2X17.2Z-6.364R1.F.1G1Z-2.186F.3G2X16.932Z-1.686R1.F.1G1X15.332Z-.3Z0.F.3X18.16Z1.414G0X19.4Z-22.946X19.107G1X18.4Z-23.3G3X17.712Z-24.055R1.F.1G1X17.2Z-24.277Z-30.209F.3Z-34.425G3X18.687Z-35.6R1.3G1X21.515Z-34.186G0X22.515Z-35.246X19.394G1X18

22、.687Z-35.6G3X18.622Z-35.889R1.3F.1G1X19.087Z-49.874F.3X21.915Z-48.459G0X22.915Z-60.146X20.107G1X19.4Z-60.5G3X18.712Z-61.255R1.F.1G1X16.4Z-62.26Z-62.8F.3Z-66.3Z-68.156G3X15.733Z-68.901R1.F.1G1Z-110.127F.3X19.8X22.628Z-108.713G0Z-109.773X19.093G1X19.8Z-110.127X12.067F.1Z-86.434F.3X12.279Z-86.142G2X12.

23、4Z-85.8R1.G1Z-77.3Z-76.2Z-72.9Z-70.35X15.712Z-68.91G2X16.133Z-68.655R1.G1X18.962Z-67.24G0Z-68.525X17.099G1X16.133Z-68.655G3X15.712Z-68.91R1.F.1G1X12.4Z-70.35Z-72.9F.3Z-76.2Z-77.3Z-85.8G3X12.279Z-86.142R1.F.1G1X10.641Z-88.392G2X10.4Z-89.076R2.G1Z-104.223F.3G3X9.712Z-104.977R1.F.1G1X8.4Z-105.548Z-110.

24、127F.3X12.467X15.295Z-108.713G0X22.Z.083X15.244G1X14.986Z-.4X16.586Z-1.786G3X16.8Z-2.186R.8G1Z-6.413G3X17.Z-6.8R.8G1Z-21.558G3X18.Z-22.3R.8G1Z-23.3G3X17.45Z-23.904R.8G1X16.8Z-24.186Z-30.209Z-34.559G3X18.287Z-35.6R1.1X18.221Z-35.867R1.1G1X19.Z-59.287Z-59.3Z-60.5G3X18.45Z-61.104R.8G1X16.Z-62.169Z-62.8

25、Z-66.3Z-68.156G3X15.45Z-68.759R.8G1X12.Z-70.259Z-72.9Z-76.2Z-77.3Z-85.8G3X11.904Z-86.074R.8G1X10.265Z-88.324G2X10.Z-89.076R2.2G1Z-104.223G3X9.45Z-104.826R.8G1X8.Z-105.457Z-110.327X10.828Z-108.913G0X21.6G28U0.W0.M05T0200M01(TOOL - 4 OFFSET - 4)(LFINISH OD GROOVE G0T0404G97S1592M13G0G54X23.Z-44.966G50

26、S3600G96S115G1X14.3F.1G0X23.Z-46.963G1X14.3X14.699Z-46.763G0X23.Z-42.969G1X14.3X14.699Z-43.169G0X23.Z-48.96G1X14.3X14.699Z-48.76G0X23.Z-40.972G1X14.3X14.699Z-41.172G0X23.Z-50.956G1X14.708X15.107Z-50.757G0X23.Z-38.975G1X14.382X14.781Z-39.175G0X23.Z-52.953G1X17.014X17.413Z-52.753G0X23.Z-36.979G1X16.42

27、3X16.822Z-37.178G0X23.Z-33.474X21.022G1X18.193Z-34.888X14.251Z-38.595G2X13.9Z-39.299R1.5G1Z-50.255G2X14.302Z-51.005R1.5G1X18.973Z-55.05G0X21.802G28U0.W0.M05T0400M01(TOOL - 3 OFFSET - 3)(LFINISH OD GROOVE CENTER - NARROW INSERT - N151.2-185-20G0T0303G97S1695M13G0G54X21.6Z-76.3G50S3600G96S115X16.G1X11

28、.5F.1G0X16.Z-77.914X14.828G1X12.Z-76.5X11.5G0X14.828Z-74.986G1X12.Z-76.4X11.5Z-76.5G0X14.828X21.6G28U0.W0.M05T0300M01(TOOL - 4 OFFSET - 4)(LFINISH OD GROOVE G0T0404G97S1592M13G0G54X23.Z-60.5G50S3600G96S115G1X16.4F.1G0X23.Z-60.G1X16.4X16.5Z-60.05G0X23.Z-59.9G1X16.4X16.5Z-59.95G0X23.Z-61.G1X16.4X16.5Z

29、-60.95G0X23.Z-61.5G1X16.4X16.5Z-61.45G0X23.Z-57.086X21.828G1X19.Z-58.5Z-59.6G3X18.8Z-59.7R.1G1X16.Z-61.9G3X15.93Z-61.976R.1G0X18.758X21.6G28U0.W0.M05T0400M01(TOOL - 3 OFFSET - 3)(LFINISH OD GROOVE CENTER - NARROW INSERT - N151.2-185-20G0T0303G97S1642M13G0G54X22.287Z-17.967G50S3600G96S115G1X17.4F.1G0

30、X22.287Z-18.067G1X17.4X17.42Z-18.057G0X22.287Z-17.868G1X17.4X17.42Z-17.878G0X22.287Z-18.167G1X17.4X17.42Z-18.157G0X22.287Z-17.768G1X17.4X17.42Z-17.778G0X22.287Z-18.267G1X17.4X17.42Z-18.257G0X22.287Z-17.668G1X17.4X17.42Z-17.678G0X22.287Z-18.367G1X17.4X17.42Z-18.357G0X22.287Z-17.568G1X17.4X17.42Z-17.5

31、78G0X22.287Z-18.466G1X17.4X17.42Z-18.456G0X22.287Z-17.468G1X17.4X17.42Z-17.478G0X22.287Z-18.566G1X17.4X17.42Z-18.556G0X22.287Z-17.368G1X17.4X17.42Z-17.378G0X22.287Z-18.666G1X17.4X17.42Z-18.656G0X22.287Z-17.269G1X17.4X17.42Z-17.279G0X22.287Z-18.766G1X17.4X17.42Z-18.756G0X22.287Z-17.169G1X17.4X17.42Z-

32、17.179G0X22.287Z-18.866G1X17.4X17.42Z-18.856G0X22.287Z-17.069G1X17.4X17.42Z-17.079G0X22.287Z-18.966G1X17.4X17.42Z-18.956G0X22.287Z-16.969G1X17.4X17.42Z-16.979G0X22.287Z-19.065G1X17.4X17.42Z-19.055G0X22.287Z-16.869G1X17.4X17.42Z-16.879G0X22.287Z-19.165G1X17.4X17.42Z-19.155G0X22.287Z-16.77G1X17.4X17.4

33、2Z-16.78G0X22.287Z-19.265G1X17.4X17.42Z-19.255G0X22.287Z-16.67G1X17.4X17.42Z-16.68G0X22.287Z-19.365G1X17.4X17.42Z-19.355G0X22.287Z-16.57G1X17.4X17.42Z-16.58G0X22.287Z-19.465G1X17.4X17.42Z-19.455G0X22.287Z-16.47G1X17.4X17.42Z-16.48G0X22.287Z-19.564G1X17.4X17.42Z-19.555G0X22.287Z-16.37G1X17.4X17.42Z-1

34、6.38G0X22.287Z-19.664G1X17.4G0G54X21.6Z-69.3G50S3600G96S115X16.032G1X11.9F.1G0X16.032Z-69.4X16.004G1X11.9X11.92Z-69.39G0X16.006X16.086Z-69.2G1X11.9X11.92Z-69.21G0X16.079Z-69.5X16.G1X11.9X11.92Z-69.49G0X16.X16.17Z-69.1G1X11.9X11.92Z-69.11G0X16.16Z-69.6X16.G1X11.9X11.92Z-69.59G0X16.X16.289Z-69.Z-68.G1

35、X11.9X11.92Z-68.01G0X18.495Z-70.7X16.G1X11.9X11.92Z-70.69G0X16.X18.748Z-67.9G1X11.9X11.92Z-67.91G0X18.725Z-70.8X16.G1X11.9X11.92Z-70.79G0X16.X18.978Z-67.8G1X11.9X11.92Z-67.81G0X18.955Z-70.9X16.G1X11.9X11.92Z-70.89G0X16.X19.208Z-67.7G1X11.9X11.92Z-67.71G0X19.185Z-72.514X14.828G1X12.Z-71.1X11.5X12.Z-7

36、0.85G0X18.496X18.6Z-66.086X18.496G1X15.668Z-67.5X11.5Z-71.1X12.Z-70.85X11.23Z-29.787G0X8.Z-29.897G1X11.25X11.23Z-29.887G0X8.Z-29.997G1X11.25X11.23Z-29.987G0X8.Z-30.097G1X11.25X11.23Z-30.087G0X8.Z-30.197G1X11.25X11.23Z-30.187G0X8.Z-30.296G1X11.25X11.23Z-30.286G0X8.Z-30.396G1X11.25X11.23Z-30.386G0X8.Z-30.496G1X11.25X11.23Z-30.486G0X8.Z-30.596G1X11.012X10.992Z-30.586G0X8.Z-30.695G1X10.645X10.625Z-30.685X CENTER - WIDE INSERT - N151.2-600-4