Some Useful Tips in Injection Molding Designs
We always suggest our customers to adjust the model’s features before cutting the steel. All these suggestions will be presented in DFM report. The purpose of adjusting features is for better material flowing and rapid manufacturing, allowing the part cool evenly, and reducing the risk of cosmetic defects such as melt lines, sinks, flashes, warp etc.
Some useful tips to a quick rundown on how to handle common features in Injection Molding Design.
Wall thickness
The consistent wall thickness contributes to uniformly cooling, this is helpful to reduce potential issues such as sinks, warp, melt lines occur on part. A good rule of design wall is no less thick than 40 ~ 60 percentage of ribs.
Rounded features
Rounded features helps resin to flow through the cavity smoothly, it can reduce stress and add strength to your part. If sharp edge and corners are critical to your part’s function, there are materials that support on sharp features will be better than none.
Draft
An important guideline, you should apply draft on all vertical walls. The draft size is depending on what texture andInjection Molding finish your needs on part. Typically, 1 degree draft per 1 inch of cavity depth is sufficient for SPI-B1 finish. Draft will ensure that your parts ejects cleanly from the mold.
Injection Molding Services - TEAM Rapid
TEAM Rapid offers Injection Molding Services for your rapid prototyping and low volume manufacturing needs. Our engineering team has rich experiences in tool building and injection molding. We understand how to optimize the part and tool’s structure to cut down the cost and lead-time. Want to get a full DFM report from us? Contact our team [email protected] today and have a free quote now.
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