1. Parting surface should be along a single plane if possible, else following the contour of the part.

2. Introduced the injection gate, parting surface choose, ejector mechanism, mold structure design and mold working principle.

3. The twice shift is prevented by convexo-concave parting surface, and the special weight and mold clamping mechanism is applied in this molding line. The successful examples are finally listed.

4. Introduced choice principle of parting surface and attentions in designing injection mold.

5. The parting line or the parting surface is line or surface that separates the cope and drag.

6. The parting line or the parting surface is a line or surface that separates the cope and drag.

7. So the research on the parting surface design technology and method is becoming one of the important facets in the field of the injection mold CAD.

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8. The parting surface designing of investment casting mould to turbine blade is a difficult job which needs more experience and influence the configuration of its mould and process.

9. The methods of parting direction determination, parting line and parting surface generation were presented and analyzed.

10. In accordance with the characteristics of 2-dimensional core pulling of product, the side parting surface and core pulling structure of mould was designed by means of comparison and analysis.

11. Consider, for instance, the case of a two-plate mod in which a circular runner has been machined from both parting surface.

12. The mold cavity was obtained by splitting mold base in parting surface.

13. In both of these, any number of impressions can be accommodated and the sprue gates, (Figure 12.5) now termed secondary sprues, are fed from runner systems situated below the parting surface.

14. The test results show that the proposed approach is effective and efficient in automatically generating the parting surface of the molded part.

15. A mesh based determination method for parting line and a GBR based generation method for parting surface are presented.

16. A new style automobile with the line main body-fuse box mold is introduced, state the mold structure, parting surface design, product ejection design and so on. practical mold structure is concluded.

17. Simultaneity, feature knowledge library which includes the information of parting surface were built with the index of main shape feature.

18. The system is composed of the module of feature modeling, realization module of CBR-based mold parting surface design and help information module of the parting surface design.

19. In the basic two-plate mod the runner is positioned on the surface while on the more complex designs the runner may be positioned below the parting surface(see Chapters 12 and 13).

20. By using the feature-based design method and defining the parting surface, parts can be directly formed from plastic products.

21. Through discussion, the method and steps of computer aided parting surface design of a mould CAD/CAM are obtained.