Hi,
We have an Amada VIPROS 357 Queen Turret Punch Press. Listed in the manufacturer specifications is a "Repeatability" tolerance of +/-.001. Can someone explain what this repeatability tolerance really means? I am trying to determine the overall tolerance of the machine combining Punch...
Hello,
I am conducting a DFMEA for a new product. It is a commercial appliance type product. I am trying to narrow down failure modes into groups to use as a guideline for future analysis.
Does anyone have a list of failure mode groups (i.e. mechanical, electrical, etc.) to help in the...
I've uploaded a couple of pictures of a SolidWorks assembly. The captive fastener shown is only used to hold the plastic to the metal securely, but the torque requirements are very low. The fastener is a #6-32 captive fastener. The plastic (thinner piece) is 3/16" thick Acrylic DS, and the...
I am trying to 3D model a witness line in an injection molded plastic part that is shaped like half of a sphere. Average thickness is 1/8" (Acrylic DS or Polycarbonate). We want to have a mold with interchangeable inserts, but are worried about the witness line affecting our part...
I am planning on injection forming acrylic. The material thickness of a flange on the part will be approximately 1/8". I would like to tap a hole in the flange for a #6-32 machine screw. I know acrylic can be brittle, but will it break if I try and thread it? I apologize, as there are...
Hi everyone,
Anyone have any ideas for retaining some #6-32 machine screws so they won't fall out of a plastic lens? The only solution that I've found, which really isn't a solution since they don't work well, is the following:
http://www.mcmaster.com/#washers/=88exnq
Any ideas?
Hi all,
Here is the situation. I am looking at material selection for a component acting as a heat sink. I need to determine the effect of each materials thermal conductivity on my entire system. I understand that as convection transfer decreases, thermal conductivity becomes less important...
