Research Article
Research on Optimization of Injection Molding Process Parameters of Automobile Plastic Front-End Frame
Table 2
The gating system comprehensive rating table.
| | The evaluation index | 6 gates | 7 gates | 8 gates | | Amount | Score | Amount | Score | Amount | Score |
| | Air (one) | 132.00 | 0 | 122.00 | 1 | 128.00 | 2 | | Weld line (bar) | 70.00 | 0 | 65.00 | 1 | 61.00 | 2 | | Sink index (%) | 1.41 | 2 | 1.73 | 0 | 1.65 | 1 | | Sink mark (mm) | 0.33 | 1 | 0.34 | 0 | 0.32 | 2 | | Warpage (mm) | 1.37 | 1 | 1.59 | 0 | 0.92 | 2 | | Shear modulus (MPa) | 1845.70 | 2 | 1841.70 | 1 | 1837.90 | 0 | | Volume shrinkage (%) | 13.84 | 2 | 13.96 | 0 | 13.93 | 1 | | Shear stress at well (MPa) | 0.55 | 1 | 0.46 | 0 | 0.52 | 2 | | First direction residual stress (MPa) | 46.63 | 0 | 46.19 | 1 | 44.97 | 2 | | Second direction residual stress (MPa) | 46.86 | 0 | 45.88 | 2 | 46.03 | 1 | | First direction tensile modulus (MPa) | 10415.00 | 2 | 10388.0 | 1 | 10388.0 | 0 | | Second direction tensile modulus (MPa) | 4912.60 | 2 | 4880.00 | 1 | 4845.80 | 0 | | Total points | 13 | 8 | 15 |
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