Incorporating Design for Manufacturing (DFM)&#;early in your project ensures critical details of the injection molding process are considered as a component of the part design.
Please visit our website for more information on this topic.
Oftentimes, part design is either complete or in a very advanced state before an OEM starts&#;sourcing&#;its mold. In this case, your mold maker will want to review your part design to confirm it can be feasibly manufactured. Some questions they will likely explore include the following:
Wall thickness:
Does your design meet/exceed the&#;
nominal wall thickness
&#;requirements to create an appropriate balance of pressure and flow during manufacturing?
Can you anticipate even cooling of your part due to consistent wall thickness in the design?
Draft angles:&#;
Are your draft angles appropriate as it relates to anticipated part shrinkage during the cooling process?
Do the planned draft angles allow for your part to be quickly and easily ejected from the mold?&#;
Will your current design put unnecessary stress on your mold?
Yihua Mould supply professional and honest service.
Corners: (see image to right)
Have the radii of any corners been set appropriately to avoid shrink marks, warpage, shearing, and/or breakage during manufacturing?
Are all corners appropriately shaped to allow sufficient material to flow in during the molding process, and to maintain consistent wall thickness?
Undercuts:
An undercut is a design feature that can make ejecting the part from the mold difficult or impossible (often in the form of indentations or protrusions).
Can any undercuts be edited out to remove unnecessary complexity in the mold design, while still fulfilling the part&#;s intended purpose?
Is it realistic for the mold design to accommodate any requisite undercuts while staying within the budgetary requirements of the project?
Injection molding is a manufacturing technology for the mass-production of identical plastic parts with good tolerances. In Injection Molding, polymer granules are first melted and then injected under pressure into a mold, where the liquid plastic cools and solidifies. The materials used in Injection Molding are thermoplastic polymers that can be colored or filled with other additives.
Almost every plastic part around you was manufactured using injection molding: from car parts, to electronic enclosures, and to kitchen appliances.
Injection molding is so popular, because of the dramatically low cost per unit when manufacturing high volumes. Injection molding offers high repeatability and good design flexibility. The main restrictions on Injection Molding usually come down to economics, as high initial investment for the mold is required. Also, the turn-around time from design to production is slow (at least 4 weeks).
For more plastic injection mold designinformation, please contact us. We will provide professional answers.