davidinindy
Check- out this website:
http://www.efunda.com/designstandards/plastic_design/plastic_intro.cfm
Frank M.
Tradewind Resources
http://www.tr-usa.com
The typical savings is in that their are no secondary parts our assembly cost.
I am hoping that we are comparing apples with apples.
A Living Hinge can be most often found in plastic clousure design for such products a ketchup, shampoo, skin lotions... just to name a few.
Frank M...
Believe it or not I found this company by doing a Google search. They evidentally sell bearings on the E-Bay auction site. But they have many NSk bearings listed there.
Nunnelly Equipment Sales
25 Shorter Industrial Blvd.
Suite 500
Rome, GA 30165
P: (706) 290-0032
F: (706) 290-0082...
Has anyone ever tried this one.
It is free and I was thinking of dowmloading it to try it out.
PDF Creator
It is an open source program.
http://sourceforge.net/projects/pdfcreator
Frank M.
Tradewind Resources
http://www.tr-usa.com
Also, one polymer over another may be more allowable in percentages of regrind. I have seen many parts which are acceptable from 100% regrind. On the other hand I have seen a good number of parts fail when using just 5% regrind.
Frank M.
Tradewind Resources
http://www.tr-usa.com
Pat,
You are also reminding me of another valid point where "5Fish" could be experiencing failure from.
If the material (PE) is being stored in a damp place it could allow excess moisture to accumulate on the material and cause vapor to be trapped within the hinge area during molding.
Whereas...
presaldo,
To get an idea of the different types of parts you can manufacture, go to www.google.com and type in "compression molded parts". Check-out what others are molding and once you have an idea of what niche you may best be able to fill, you would then be able to look for that...
brettba,
My guess is that the results you are seeing is most likely due to chip load in the fluted parts of the reamer. I am assuming that the shaft of the reamer is true and straight.
28" is long way to go!
You may want to try a highly experienced wire EDM company or a Gun Driller...
Mike,
Your reference to water-tite leads me to ask how you would define water-tite and in what parameters?
The best thing to do is design well, prototype and then validate your process.
A rule of thumb in plastic is "Plastic does not like sharp corners". This is due to stresses...
The success of the two materials bonding with each other depends on which materials you select. The most efficient way to to calculate the bonding is to look at the melt temperature of the primary part in relation to the over-molded part. Then the component should be prototyped to verify the...
Give Advanced Elastomers a call.
They can give you a pretty good idea of what to expect using their Santoprene materials.
Live Aloha
Frank M.
Tradewind Resources
http://www.tr-usa.com
Judging from your picture (by the way, very clever inserting it into the forum) it definitly shows that a problem exists. I can't tell if the design of the part is pushing the envelope of nominal wall thickness, or could be influenced by gate size or location , processing parameters, or...
I have used Pro/E for quite a while.
I have always had to make the changes manually.
I guess we don't live in a perfect world?
I am hoping that you get an answer to this so that I may also learn a new trick.
Live Aloha
Frank M.
Tradewind Resources
http://www.tr-usa.com
I have seen the 3D View program by Actify work very well.
You may want to have your customer save his files to IGES format, if all you want to do is view the file information.
Live Aloha
Frank M.
Tradewind Resources
http://www.tr-usa.com
My experience is with TPE's and most Injection Molded Polymers. If I can be of service, please let me know.
Live Aloha
Frank M.
Tradewind Resources
http://www.tr-usa.com
dfall,
I think you are on the right track with using the "Great Stuff" foam. You could also find an insulation guy in the "Yellow Pages" that uses expandable foam.
My guess is that using the canned foam will cost less if you only want to experiment.
Live Aloha
Frank M...
I know of one that is free to try and works very well.
I believe that the program will operate about 20 times before having to pay for it.
Go to: www.actify.com
Live Aloha Frank M.
Tradewind Resources
http://www.tr-usa.com
From the information you supplied a number of variables could exist. I am not even sure how much variance you are seeing between parts.
The first thing I would check is to be sure you are using exactly the same materials (Nylon) from the same manufacturer.
Second, is the material being dried...
alan_a,
I can't give you a definitive answer to your experience without more information.
I hope you are running your computer system with as much RAM as it can hold! When running CAD programs this is the best thing to do, RAM is cheap right now.
You may also have another program trying to...
