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1、Page 1,DFM Guide,Page 2,Model Image,Page 3,Gate location,Page 4,Parting line,Page 5,Sliders (1),Page 6,Sliders (2),Page 7,Lifters (1),Page 8,Texture Area,Page 9,Thickness Analysis,經模型分析,產品平均肉厚2mm,肉厚均勻適合成型.,Page 10,Text,Page 11,Suggest (1),Page 12,Suggest (2),Page 13,Suggest (3),Page 14,Suggest (4),P
2、age 15,Draft Check(1),Page 16,Draft Check(2),Page 17,Project name: DTA-100 Part name: Top Cover Part number: 554097-001 CAE engineer: ZengYu Report date: 2008.06.09,Moldflow Analysis Report,Page 18,Analysis introduction,Optimize gate location and execute filling, packing and warpage analysis. Supply
3、 conclusions and suggestions according to analysis results. Cooling system is excluded. Plastic material is : ABS: Polylac PA-709 Chi Mei Corporation.,Page 19,Material information,1. Melt density 0.94 g/cu.cm 2. Solid density 1.0166 g/cu.cm 3. Ejection temperature 83 deg.C 4. Recommended mold temp.
4、50 deg.C 5. Recommended melt temp. 225 deg.C 6. Absolute maximum melt temp. 280 deg.C,Viscosity model,PVT plot,7. Minimum melt temp. 200 deg.C 8. Maximum melt temp. 250 deg.C 9. Minimum mold temp. 25 deg.C 10. Maximum mold temp. 80 deg.C 11. Maximum shear rate 50000 1/s 12. Maximum shear stress 0.3
5、MPa,ABS Polylac PA-709 : Chi Mei Corporation,Page 20,Part introduction,The max. part size is shown as left figure: 144.0mm*101.6mm*28.6mm. The average thickness is 2.0mm.,Page 21,Runner system,1 Sub gate; Hot runner; 2 Cavities mold; Gate location is shown as above figure.,Page 22,Filling condition
6、: mold temp.: 50 deg.C melt temp.: 225 deg.C total project area: 276.47cm2 fill time: 1.6 s V / P switch: 99%,Molding condition,Packing plot :,Packing Profile,Page 23,Fill time,The blue area is first filled, and the red area is last filled. The fill time is 1.668s. (Full screen to see animation) The
7、re has obvious hesitance on the meshes area, so severe air traps will occur in circled regions.,Page 24,Pressure at V/P switchover,The max. injection pressure is: 116.5Mpa.,Page 25,Temperature at flow front,Temperature distribution: 159.6249.8C. There has low temperature in circled regions because o
8、f hesitance.,Page 26,Weld lines,Weld lines are indicated by chromatic lines.,Page 27,Air traps,Air traps are indicated by purple balls, pay attention to venting them.,Page 28,Volumetric shrinkage at ejection,There has no sink marks on part surface.,Page 29,Warpage,The plots are the deflection of X,Y
9、,Z component by scaled up 10 times.,Page 30,X direction deflection,The plots are the deflection of X component by scaled up 10 times.,Page 31,Y direction deflection,The plots are the deflection of Y component by scaled up 10 times.,Page 32,Z direction deflection,The plots are the deflection of Z com
10、ponent by scaled up 10 times.,Page 33,Conclusion and suggestion,Conclusion: There has obvious hesitance on the meshes area; (See page 7) The injection pressure is a little high, but it can be accepted; There has low temperature on the meshes area because of hesitance; (See page 9) There has no sink
11、marks on part surface; Pay attention to the weld lines and air traps; (See page 10,11) The part deflection is small. Suggestion: The gate location is feasible. In order to avoid hesitance, we suggest to increase the thickness of the red surface from 1.5mm to 2.0mm. (See next page),Page 34,Fill time(
12、Modified part),There has no hesitance on the meshes area after increasing the thickness. (Full screen to see animation),Page 35,成型機台KO孔位置及規格,我處現有之台中精機及三菱機型其KO孔位置及規格如右圖所示。其設計定位環尺寸為100mm射嘴SR21mm,554097-001,OK,No texture?,Page 37,554097-001,Maintain MT11020?,554097-001,Please confirm: OK,Page 39,554097-001,此邊MT11020，拔模角需加大到3度(目前是2度），建議減膠加大拔模角。OK,Page 40,554097-001,爲了改善頂部散熱孔區域模流狀況，建議將散熱孔減膠拔模方式改為加膠拔模方式 OK,1.64mm,1.5mm,減膠拔模,加膠拔模,
