The company I currently work for has been doing fully exploded assembly drawings for years. All assembly information is contained in the drawing. At my previous job it was detailed MPI's with lots of pictures and NO assembly drawings. Other engineers I know do mostly assembly drawings that are...
I came across an old print (circa 1983)that calls out nickel plating as
"Bright Nickel Plate .0002-.0003 Thk."
Our materials manager is asking what type plating do we want.
The part is a 1015 steel shaft that runs through bearings so the O.D. need to be tightly controlled, but it is also...
I am designing an assembly which will incorporate a Maxwell Kinematic mount (3 balls, 3 V-grooves). The balls will be sapphire and the V-grooves some type of hardened SST (440C perhaps). The basic Hertzian spherical indentation equations use the Elastic modulus and Poisson's ratio to calculate...
We currently use hard anodize on aluminum parts (Mil-A-8625F, Type III, Class 2). The anodize gives acceptable corrosion resistance and cosmetics. However the process ends up being expensive becuase of the extensive masking required. Due to the build up (.001")small threaded holes must be...
I have an application which requires a small wear plate. In a previous design the entire part was made of 420 SST hardened to 50-54Rc and showed excellent durability, however the part has small complex features which are difficult ($$$) to machine in 420SST. A possibly better solution is to...
I have been assigned the task of looking into the feasibility of changing the materials of some parts which are currently made of Ultem (PEI) to Valox (PBT). Ideally we want to do this with minimal change to the tooling. Anyone have experience with these materials?
