Mech guy here who's out of his element ;)
Looking to build a very inexpensive tachometer with small LCD display for a project using hobby sized motors (think R/C motors or smaller). I'm guessing I need either a mini inductive pickup or opto device wired into an LCD but I have no idea where to...
I'm getting some samples in a T7 temper. Material "book" properties look close enough so this could resolve the issue.
Thanks all. Appreciate the assistance.
arunmrao, balcksmith: I do not know the precise casting/treatment methods used by our vendor so I don't know the answer to your questions.
swall, CoryPad: It's funny you mentioned "blade pinching" as that's exactly what our machinist called it. I guess my question becomes: Is there something...
Thanks for the responses.
This is a sand casting made using a wooden pattern. It is a simple OD x ID x Length, for example 11-1/4" x 8-1/4" x 3", with no unmachined surfaces on the finished part. After the part is machined it is checked on a mandrel, then band saw cut in half for...
We purchase tubular A356-T6 castings, nothing special about their geometry, and experience movement when we bandsaw cut through the casting wall (ie. .015" collapse in a 11-1/4 OD x 8-1/4 ID). We've used 713 previously and did not have this problem.
Is A356-T6 known to have internal stresses...
