Ironworker Prototype II Proposal
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by Brianna Kufa and Reid Enniss
Current Design Progress, 12/8/11
- I was far into a previous design, when I realized how foolish it was to be designing my own blade instead of purchasing and mimicking one that already has the proper dimensions and capacity. I am scrapping that design and beginning a new one similar to a Scotchman 120T
Analysis of Industry Standards
See the Spreadsheat Comparison. (Note: If someone can figure out how to embed this, that would be fantastic! Google changed the "Share" menu.)
Summary
- The most common machines cost $18.5k-25k.
- They weigh between 4800 and 5500 lbs.
- The punch capacities are all at least 120 tons.
- All except the Uni-Hydro can flat shear up to 1"x12", and most have 24" blades.
- All can shear at least 1/2"x6"x6" angle.
- Most machines shear the flat by an "angular" cut, meaning that the blade is rotating about some point.
Findings:
Most machines shear the flat by an "angular" cut. The closest design to the OSE objective is the Scotchman. It has a relatively simple construction, and enables quick re-tooling. The center table is desirable as big (up to 24" wide) attachments can fit inside, enabling more diverse fabrication.