Tried diamond locating pins and they still broke after a few days. As stated earlier I believe the undercut is the major flaw, it wont require much force to break a bittle steel such as this with an undercut.
The fixtures were designed and built using the 1144 locating pins, I am unsure why they selected this material, probably because it is a stock item from jergens/mcmaster/carrlane. They are the lockscrew type with a tapper. I havent found any lockscrew type locating pins with a shoulder and no...
I am currently using 1144 steel heat treated to 50Rc for locating pins which are used on a fixture to build seats. When a seat is built a robot picks the seat from the fixture, there must be some binding happening between the locating pin and the part that sits on it. This causes the locating...
