Reddit Reddit reviews Plastic Part Design for Injection Molding 2E: An Introduction

We found 12 Reddit comments about Plastic Part Design for Injection Molding 2E: An Introduction. Here are the top ones, ranked by their Reddit score.

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Engineering & Transportation
Engineering
Chemical Engineering
Plastics
Plastic Part Design for Injection Molding 2E: An Introduction
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12 Reddit comments about Plastic Part Design for Injection Molding 2E: An Introduction:

u/energy_engineer · 4 pointsr/engineering

For plastic injection molding, this book was a good start for me. The issue is, you can take a feature (e.g. snaps) and write volumes on design and application - don't take one book/source to be the only reference.

The various resin suppliers also publish DFM literature that can be useful and worth reading.

Dupont Assembly Techniques -- more articles here

BASF on snaps -- more from BASF

And, as silly as it is... Occasionally protomold will publish a useful nugget of practical information.

u/billy_joule · 4 pointsr/MechanicalEngineering



>My challenge or I suppose my question would be what material I would use to manufacture something like that (like once I have a mold).


Material must be selected before the tool is made because the material properties drive the tool design (shrinkage rates, viscosity etc).

There are thousands of options for injection mouldable plastics so you'll need some requirements to narrow down your options.

Plastic Part Design for Injection Molding: An Introduction By Robert Malloy is a great intro to IM part design.


Check second hand book sites for cheaper used copies (Abebooks.com is good).

There are free design guide pdfs online (of varying quality...) which give a decent intro but are usually tens of pages so obviously don't have the detail a decent books will. The guides by Bayer and Dupont are the best imo.

u/chase2g · 3 pointsr/engineering

Although it's not a course but I recommend picking up this book, Plastics Part Design for Injection Molding by Robert A. Malloy. Professor Malloy recently retired but he was the head of the Plastics Engineering at University of Massachusetts Lowell. The book is really great for design engineers like yourself. Buy it and you will not regret it.

https://www.amazon.com/Plastic-Part-Design-Injection-Molding/dp/1569904367/ref=asap_bc?ie=UTF8

u/C0unt_Z3r0 · 2 pointsr/engineering

As an engineering manager for a contract manufacturing firm that specializes in Plastic Injection molding, if you're looking at "free" online resources, the "best" I've run across is [The GE Plastic Design Guide](http://www.manterra.com/GE_Design_Guide.pdf)

For non-free, the "gold standard" is [Malloy](https://www.amazon.com/Plastic-Part-Design-Injection-Molding/dp/1569904367)

u/FatFingerHelperBot · 2 pointsr/manufacturing

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u/MiddleEarthGIS · 2 pointsr/manufacturing

There are a few injection molding guides on Amazon. Here’s one that I found. Search on Amazon and other used book sites. I bet you can find something for $30.

u/Perpetualdynamism · 2 pointsr/MechanicalEngineering

I bought this book a few years ago when I needed to start designing more complex injection molded parts. I still reference it. Great easy to read book. https://www.amazon.com/Plastic-Part-Design-Injection-Molding/dp/1569904367

u/G4RB4G3M4N · 1 pointr/engineering

As someone in a similar situation, I'd recommend these two books. They're what were were taught with when I was in college for my Plastics Engineering degree (Bachelors at Umass Lowell). I've had both of the authors as professors.

I'd also recommend this book by Professor Kazmer: Injection Mold Design Engineering if you want to design the mold of a injection molded part. DON"T OVERLOOK THIS. A lot of times our professors were explaining how they'd have to help companies who designed a good part that couldn't physically be molded.

The previous book mentioned by Professor Malloy: Plastic Part Design for Injection Molding 2E: An Introduction is for actually designing the part.

Also, make sure that you get a book on polymer material science. Learn about the different types of plastics, how they handle, ect.

Start with reading some simpler PDFs from resin suppliers like this one.

A big thing to consider is also this: Does the company

  • Design the part?
  • Manufacture the part?
  • Design or make it's own molds?
u/dubbl_bubbl · 1 pointr/engineering

Plastic Part Design for Injection Molding is probably one of the best books out there on the design of plastic parts. Might also be worth looking into a course or book for injection mold tool design since understanding, draft, parting lines, shutoff, ejection, lifters, gates & runners and all other stuff that contribute to the limitations of plastic part design.

u/tokingdomcome623 · 1 pointr/hwstartups

This is a really good one:
Plastic Part Design for Injection Molding 2E: An Introduction https://www.amazon.com/dp/1569904367/ref=cm_sw_r_awd_YhdSub1FSJ2NJ

u/i621148 · 1 pointr/engineering

Here is a good snap fit guide:
http://web.mit.edu/2.75/resources/random/Snap-Fit%20Design%20Manual.pdf

Also we have this book in our library at work:
Plastic Part Design for Injection Molding 2E: An Introduction https://www.amazon.com/dp/1569904367/ref=cm_sw_r_cp_apa_AjduzbRTN0ZFN