Much to my surprise, cutting is cheaper. Bending is about $60 per yoke (including material) in lots of 25. Cutting is $43 per yoke (including material). Bending is also causing some undesirable cracks in the bend as well.
The yoke is part of a trolley system running on an overhead rail. The trolley supports a hoist and may have as much as 7,500 lbs of load. Because it is overhead, the 7,500 lbs must be less than 20% of the ultimate strength of the ASTM A572 Gr. 50 Steel. In other words, the yoke must be...
Thank you for the replies. TVP, your on the right track, by "burn out", I'm referring to plasma cut or torch cut. The part starts as a 3" thick plate from which the "U" shape is cut. I can not be sure if the grain of the plate runs with the two "legs" of the "U" or perpendicular to them. I'm...
I have a yoke, please see attached sketch, which is bent from a 3" x 1-1/4" bar of ASTM A572 Gr. 50 Steel. If I switch from the a bent bar to a burn out, do I loose any strength due to a change in the grain structure?
TVP,
The C1045 is induction heat treated and tempered to Rockwell C-45 to C-55. This has been good for this application in the past, but I am designing some new rollers and would like to know I've checked everything. I would like to get my hands on a table (machinery's handbook style) that...
