Engineering Verification Before Injection Mold Making

Image result for design verificationIt’s easy to find a mold manufacturer to get your plastic mold made, however few people realized the importance of engineering verification before you kick off an injection mold making. Because the engineering validation might reduce or avoid your mold change and mould modification after the mold is made. It will greatly save your timing and cost, as well making your project risk free. Therefore we would like to share some useful tips on how you should verify your product design before mold making.


3D drawing checking out

When you finish your 3D model design, you should always check out your design structure for individual parts and whole components. Normally you have to check out the thickness of wall, stiffness, fitting, surface treatment. Normally a product designer should consider and optimize the part structure on how to make the mold, how the mold structure will be easier and in which way the mold cost will be lower. And making these design as good enough to avoid shrinkage, break, and improper match with other components. If you don’t follow these rules, it’s most likely that you have make some mold modification or adjustment in future.


2D drawing checking

A 2D drawing is used to define the manufacturing process and some important specification, it’s a written communication document to involve anyone who might work with the products that you design for. Most of time, a product designer should specify and define some critical features with dimension and proper tolerance. In theory, we should always allow some manufacturing deviation to happen for most of dimension when plastic injection mold process, and put reasonable tolerance to control the critical dimensions. It will benefit for both products owner and mold manufacturers. If we don’t define our parts with 2D drawing. It’s very hard to control it and might need mold modification later again.


Prototype Verification

Everybody knows the prototype is a very common engineering work to verify a product design or an idea, which help people to check product design models and feasibility of a concept. So does for mold making. When you finalize a design, you should always make some prototype to check out the detail structure. It’s a very useful way to avoid mold modification, and get your project risk under lower.


Prototype Mold Verification

Sometimes when people would like to make some expensive mold and they are not sure if their mold design will be workable for their products, they will consider a prototype mold. Because the prototype mold is normally made with low cost of aluminum or other cheap material. For example, prototype mold of automotive mould is very common, for formal automotive mold might cost few thousand to million dollars. But you can make prototype mold to check out mold design and part design.


All in one word, if you are about to kick off your plastic injection molding project, please do systematic engineering validation for it. You will definitely save lots of time and money and avoid unnecessary engineering changes.