Special Mold Designs

Such recesses could be eliminated from the design by reshaping the wall to maintain uniform thickness. If this is not possible for functional reasons or because of appearance, little can be done except to provide ample radii to facilitate the plastic flow. The product will probably require a slower molding cycle because of the special molding conditions required. 

Heim H-P et al (Eds) (2001) Specialized molding techniques. Plastics Design Library... 

The dimensioning of the mold (phase II of the mold design) essentially includes the rheological, mechanical, and thermal mold layout. These aspects of the layout can be further divided into several steps, each with its own special emphasis ... 

Wimberger-Friedl R (2001) Injection molding of sub-pm grating optical elements. In Heim HP, Potente H (eds) Specialized molding techniques, plastic design library. Norwich, New York... 

Parting lines. Parting lines on molded parts require special consideration in part and mold design, especially where two molded parts must come together as, for example, on each half of a molded box with a hinged opening. 

Special Molds. Some molds may require a complicated design, inserts, and special machining. Alignment pins may be used to ensure a perfect fit. If a rotomolded article contains a large section where no resin buildup is desired, the mold can be shielded with an insulating material such as Teflon. 

Cade 253 Developed in a unique partnership between Pelican and BMW Designworks, the case fits in most soft bags and features a special molded foam system designed to protect and secure the iPad or iPad 2, along with an Apple Bluetooth wireless keyboard, a power adapter, ear buds and download cables. Pelican Products, Inc., www. pelican.com, (800)473-5422. Cnvfe 253... 

It is important to introduce the optimum cooling already into the prototype mold in order to optimize the quality and warpage of the components. The most distinctive feature of the LaserCUSING technology is that special cooling systems are already constructed in the mold design in 3D (Figure 1.290 (a) and (b)), which can then... 

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