Design Guide Topic 2

Weight Reduction

• Reducing the volume of material decreases component cost and shortens cycle time, thus increasing production rates.
• Size and location of weight reduction is carefully considered to avoid irregular shrinkage.

Part Identification

• Logos, part numbers, and cavity identification can be incorporated.
• Raised letters on the component are easier to produce and should be located on surfaces parallel to the major parting line.

Gates

• Several gating options are available.
• Ashland will assist you with the location and size of the gate based on the configuration of the component.

Ejector Pin Marks

• Pins, sleeves and stripper plates are methods used to eject a component from the tool cavity.
• Locations are carefully selected to avoid causing distortion during ejection.
• Pins are typically between .060" and .080" (1.5mm - 2.0mm) in diameter.
• Pins are maintained flash-free and flush to component within +/-.001 " (+/-0.025mm).

Variations

• Ashland has the ability to produce components with similar features, yet with slightly varying dimensions- and configurations.
• Incorporating inserts into the injection molding tool dramatically reduces the investment in tooling.
• Notification of the need for further variations during component design can reduce the total die cast tooling investment

Part Consolidation

• Consolidating several parts into one die cost component can reduce production costs and assembly operations, while dramatically improving performance.
• Eliminating assembly operations can simplify component design.