For those familiar with a high volume production(30 machines): What are the biggest mistakes you've seen where a lot of value is lost?
Value can be defined very loosely here, obviously.
I recently spent a lot of time talking to injection moulders ( In China) to get the surface finish spot on for one of my sensor housing. Here is the summary and my take on Injection moulding surface finishes
Guide for injection moulding surface finish
Hope it is useful information for others
Hi All,
Could anyone recommend somewhere to learn about designing for injection moulding? I mainly work around sheet metal but I’ve recently designed a few plastic parts, in these instances I’ve designed the part without thinking about the manufacturing process and then passed the part over to a toolmaker who has modified the part accordingly. I would like to learn more about the process so I understand the limitations when designing.
Also, I would be interested in knowing how other people work. Do you design the part (to suit the injection moulding process) and then pass over to a toolmaker to make the tool? Do you design the part and then work with the tool maker to optimise it?
Rapid Tooling describes the process where a Rapid Prototyping (RP) model is used as a master pattern to create a mould rapidly. The Rapid Prototyping model may also be used directly as a tool. The two.
So I'm looking for a machine like McLaren uses to shake their Monocoque chassis.
Yes, this is for cars too.
From what I can see in essence, they lay up the carbon fibre into an injection moulding die, clamp it together, and then instead of plastic, it injects the resin and bakes it in the mould.
Obviously their layup is proprietary and the way they bond the subassemblies and mould them, however I'm not so concerned there as that's not related to our requirements.
I'm just curious what the machine is actually called and who makes them.
Hi all,
We’ve got a working resin print model of our product, with hopes to injection mould soon, but the nature of injection moulding is quite different to 3D printing. (Overhangs, voids and draught angles are no issue for example).
Not only does the nature of printing layers mean that the prototype is not “symmetrical“ in its grain as it would be when injection moulded, but the complexity of injection moulding is hard to convey to contractors as the model uses printed supports out of necessity when printing, making it look like the process to move to injection moulding is a lot easier than it is likely to be. Likely we’ll need a multi part mould which the prototype seems to make look like we can bypass!
Is it suitable to use a 3D print production prototype model to show the viability of the product, though in actuality injection moulding is likely to be more complicated than people seem to realise at this early stage?
Thank you kindly :)
Can you have non-perpendicular side actions in high volume manufacturing? I know you can easy do it it small volume as the operator does it by hand. But I'm thinking more automated.
Also does it make any difference if its an odd angel? Say 63.5° or does it help to round it an even 60°
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Hi guys,
I am trying to manufacture this piece in China and I will be needing 500. There is a $1200 charge for a tool to be made for injection moulding however I am not willing to pay that yet unless I know the entire project will sell.
The reason I say there is 500 is because if there was 1 it could probably be CNC'd, however that would take far to long and I assume be way too expensive to make the initial 500.
Any advice would be greatly appreciated, thanks.
EDIT: I meant to say this needs to be made out of plastic. I was thinking PVC but the material is not 'set in stone'.
https://preview.redd.it/6ib42nkd7vi61.png?width=579&format=png&auto=webp&s=79e27780b3bd17e66b3767b3a14f683a84a9ad48
Here is the link to other reddit forum: https://www.reddit.com/r/manufacturing/comments/o6odsh/hi_guys_i_am_learing_injection_modling_process/?utm_source=share&utm_medium=web2x&context=3
I recently spent a lot of time talking to injection moulders ( In China) to get the surface finish spot on for one of my sensor housing. Here is the summary and my take on Injection moulding surface finishes
Guide for injection moulding surface finish
Hope it is useful information for others
Can you have non-perpendicular side actions in high volume manufacturing? I know you can easy do it it small volume as the operator does it by hand. But I'm thinking more automated.
Also does it make any difference if its an odd angel? Say 63.5° or does it help to round it an even 60°
