As an experienced industrial designer, especially for a mold designer, when he or she designs a plastic part, the wall thickness need to be considered carefully, On the premise of meeting the requirements of product use function and injection molding, the designers should know how to design a minimum wall thickness, because during injection molding process, The thinner the wall, the faster the part cools, so that we can save cycle times, then save part costs, of course, thinner parts weight less, for every part, we can save the amount of the plastic, in a big order， the amounts of the plastic are saved.
What is the suitable wall thicknesses of an injection-molded part? I think, generally it ranges from 2 mm to 4 mm (0.080 inch to 0.160 inch), for some plastic material, because of special requirement, The wall thicknesses can be designed as 0.5 mm (0.020 inch) without any molding problem.
While thick walls offer additional strength, there are some advantages to engineering thinner walls. In fact, the longer a production run, the more benefits that can be gained by keeping a part thin and light, so maintaining optimal wall thickness is particularly important for high-volume injection molding projects. Keeping walls as thin as possible allows for:
Resistance to warping during the cooling process
Reduced costs due to less material usage and faster manufacturing
Reduced overall weight for ease of handling, management, and shipping
Quicker cooling cycles for shorter, more efficient production run time
Wall thicknesses are not subject to any restrictions, but generally, the goal is to create the thinnest wall possible while taking into account the part’s structural requirements and overall size and geometry. The flow behavior and material qualities of the resin should also be considered.
Wall thickness is defined as the distance between one surface of the 3D model and its opposite surface. It is the required thickness that a 3D model should have. Since many 3D printing problems are caused by inappropriate wall thickness, it is important that the wall thickness of the 3D model is assigned correctly.
Maintaining uniform wall thickness allows for the most uniform flow of the plastic through the part, allowing the best processing. Also, plastics are essentially poor heat conductors. By maintaining a uniform wall thickness, the part will cool as uniformly as possible.
Determining the best wall thickness for each part is a balancing act. It must have great mechanical strength so that the part can support the intended load of any additional parts in an assembly. A good design must also prevent oddities like strength-reducing bubbles that could occur inside the wall if the part is too thick and a material that doesn’t have the proper flow properties is chosen. Any experienced design engineer with a background in plastics should be able to assist a customer with part design to avoid costly mistakes later in manufacturing.
Consistent wall thickness is critical during the cooling process in injection molding; if some sections of a part are thinner than others, the part may be vulnerable to warping, cracking, twisting, and overall failure. Uniform wall thickness minimizes both shrinkage and residual stress in the final part.
please examine an injection mold design on the computerIf completely uniform walls simply aren’t an option, gradual thickness variations are essential to maintaining design stability. Wall thickness variations in high-mold-shrinkage plastics should never exceed 10%, even with gradual transitions to accommodate for potential stress concentrations.
Uniform wall thickness also allows for the most efficient, uniform flow of resin through a tool for ideal processing. Variations in wall thickness cause molten polymers to take preferential flows, leading to air trapping, unbalanced filling, and weld lines.
yes! you are right!
thank you for you share your experiences
yes! for a plastic product design or a injection molding, This is a technical key point
Incredible points. Sound arguments. Keep up the good effort.
Hi colleagues, its fantastic paragraph regarding cultureand entirely explained, keep it up all the time.
I’d like to thank you for the efforts you have put in penning this site.
I’m hoping to see the same high-grade content from
you in the future as well. In truth, your creative writing abilities has motivated me to get my own, personal blog now ;)
Nice post. I learn something totally new and challenging on sites I stumbleupon everyday.
It’s always helpful to read content from other authors and practice
a little something from their sites.
I was wondering if you ever considered changing the page layout of your blog?
Its very well written; I love what youve got to say.
But maybe you could a little more in the way of content so people could connect with it better.
Youve got an awful lot of text for only having one or two pictures.
Maybe you could space it out better?
thanks for your great suggestion, we will consider it carefully
You can certainly see your expertise within the work you write.
The arena hopes for more passionate writers like you who are not afraid to
mention how they believe. At all times go after your heart.
Good post. I will be going through some of these issues as
My brother recommended I may like this website. He was
totally right. This submit actually made my day. You can not imagine just how a lot time I had spent for this information! Thank you!
Just want to say your article is as astonishing. The clarity in your post is just great and i can assume you’re
an expert on this subject. Fine with your permission let
me to grab your RSS feed to keep updated with forthcoming
post. Thanks a million and please continue the gratifying work.
Hi, I do think this is a great web site. I stumbledupon it ;
) I am going to return yet again since I book marked it.
Money and freedom is the greatest way to change, may you be rich and continue to guide others.