We have a couple of product problems that may be solved with a laser. First problem is to seal a glass lens into a delrin lens base: we can make a small bezel which overhangs the lens and laser or hot-stamp it to act as (hopefully) a seal or at minimum a means of clamping the lens in place...
Thanks, they have a lot of materials. DO NOT go through the front door at Huntsman, otherwise you get to know what chemical to treat your soy beans with, our how to invest in the company. Found better luck to Google Huntsman and epoxy molds, and received a waterfall of info. Thanks again.
Well it sounds like the best thing to do is forget it. The original idea was sound, but the power issues are not simple, and yes, by the time one is finished with all of the converters you are into thousands just for the power.
Thanks for the input, better to stop this train before it goes...
Thanks. Thats good news, and 100 shots is fantastic. Well as it comes out, polycarbonate would have been a good candidate for some of our optical parts, and we use a lot of Delrin as well, which is a higher temp. But, considering the basis of this - protos - I should try to stick to my own rules...
We have purchased an Arburg ALlrounder 35 ton injection machine, old but in beautiful shape. It has a MUD set (modular tool setup) so quick change with smaller subtools make this ideal for us. What I want to do is make a unit tool (basically a bath-tub for the epoxy) for epoxy molds. We do a lot...
I am considering purchase of an evironmental chamber that is 400 VAC 50 hz. I have 208 and 480 VAC in the shop. The chamber basically is an oven and a refrigerator, so lots of stuff including control electronics.
If it was a simple device the 400/50 matches up with 480/60hz, but it is not so...
More: Tests show the Lexan is in good shape and has not been disadvantage by excess humidity nor by release agents. The breass insert used was a straight cylinder with barbs, probably unheated and of unknown level of cleanliness. Thermal stresses are the probable culprit, aided by the additional...
Update:
Strong focus on the wrong insert for the application. High level of stress concentration at insert interface due to wrong insert surface (barbed) and thermal differential. Possible use by molder of mold-release compound. May very well go to post-mold ultrasonic welding. One more try then...
Yes, a long way from home. I dont think there will be a problem bringing in the tooling if we bring it here. Our operation is rather old fashioned in that we are vertically integrated, except for the plastic injection. We invent, design and build it all. I am doing my best to resist doing the...
Thanks, thats a good summary. Parts have worked extremely well in the past. We supply the resin (GE Lexan, now Sabic)and that end of it I feel is controlled. Three months - one month to get the Lexan here (special colorant) plus two months turn including shipping. But if we can resolve the issue...
Pushed one inseret through, cleaned with toluene (its what I had) then re-inserted. Ok, not good experimentally on at leaset three points, I know. I then heated the insert with a soldering iron as before. I believe I had more resistance than before - but it still went at 8-10 inch pounds. In an...
