Peter Bagwell
Shop Doc – Micro Beginnings
Dear Shop Doc, I have recently been asked if my shop does “micro” machining. I’ve done some work on small parts recently, but I’m not exactly sure what is meant [...]
Shop Doc: Mr. Bone Screw
Dear Shop Doc, I’m going to be rotary broaching a 9/64” hex in titanium. The hole is a blind hole about .160” deep. I’m worried about hydraulic pressure building up [...]
Shop Doc: Measuring a Hex Hole with Go/No-Go Gauges
Dear Shop Doc, Like most machinists, when I’m making screws I check most of the dimensions with calipers and a micrometer. But I’ve noticed it’s not very easy to [...]
Micro Beginnings
Dear Shop Doc, I have recently been asked if my shop does “micro” machining. I’ve done some work on small parts recently, but I’m not exactly sure what is meant [...]
“Twisted” while Broaching 400 Series Stainless
I’m using a quarter inch hexagon broach to create a quarter inch deep form in 400 series stainless steel. However, the form is twisted, somehow spiraling from one end to [...]