Hello,
I am battling with a mystery high-impedance coating that is appearing on the battery terminals of a lithium ion battery. Frankly, I'm not even sure its corrosion, but - as it's an intermetallic joint - it's my best guess so far! I've uploaded a couple of magnified photos, showing how the...
Hello SlideRuleEra. Apologies for the slow reply, and thanks so much for your comprehensive post. I did look at some of the literature available and thought to come back and post some conclusions. Basically, you can quite easily calculate the force per cm of vertical cardboard perimeter and...
[I originally posted this on the eFunda forum, but only realised after posting how inactive that forum is! I have now requested that the eFunda post be deleted to avoid double posting.]
Hello. A batch of our products we recently produced reached the user in damaged boxing because the corrugated...
Sorry, just re-read post above and realised it's not clear whether it was in reference to crush ribs or ultrasonic welding/heatstaking. It's in reference to crush ribs.
Edward Matos
AMIMechE
Amazingly this is actually what we ended up going ahead with! In theory the part only has to be pushed in once in its life and then should never be pulled out. In practice there might be as much as 10-20 insertions over the years, with some deterioration acceptable.
The other advantage of crush...
Hi all. I am about to commission my first injection moulds, made in China. I trust the company I am contracting to do what they do best, but thought I might ask here for some independent advice, just in case. Many thanks for any help you might be able to offer. The question below is described in...
