Banned Material

Students are expected to have undertaken basic research into the safety and machinability of any materials they intend to work on in the shop. Materials that produce fine particulate or aerosol when machined (i.e. produce dust or smoke); require special tooling to be machined; are known carcinogens; or are toxic, hardened (over 35 HRC), glass or glass filled, abrasive, corrosive, or pyrophoric are not acceptable. The machine shop does not have the proper tooling or safety equipment to handle such materials, and students working in the shop do not have sufficient training to properly deal with them.

The following are some examples of materials that are not acceptable in the machine shop:

• Lead
• Magnesium and its alloys (flammable)
• Beryllium and its alloys (carcinogenic, dust, toxic)
• G10 (toxic, glass filled)
• Fiberglass (glass filled)
• Phenolic (toxic)
• Titanium (special tooling)
• Ceramics (abrasive, special tooling)
• Graphite (dust)
• Hardened Steels (hardened)