2.0 – Shop Safety

Lesson contents 2.1 – Safety Awareness 2.2 – Personal Conduct & Shop Etiquette 2.3 – Appropriate Shop Clothing 2.4 – General Safety Practices 2.5 – CNC Safety Practices 2.6 – Safety Contract

Objectives Display awareness of shop safety. Apply general safety rules. Select appropriate shop clothing. Demonstrate safe personal conduct in shop. Apply additional precautions when running a new CNC program.

Think 2.1 - Safety awareness Machine shops have many hazards. What you don’t know CAN hurt you. Avoid over-confidence and assumption. Be careful and methodical. Cultivate an attitude of safety. Think

Think Safety Common hazards Cutting tools are very sharp. Can cut if improperly handled. Spinning tools are extremely dangerous. Tools can shatter. Chips produced by machining are sharp. Machining throws off hot, sharp chips at high speed. Think Safety

Common Causes of injuries Flying chip => eye injury. Chips on bench => cut hand. Chips on floor => cut foot. Not looking where your hands are moving. Distraction – Inattention. Using equipment without proper training. Long hair catching in rotating machinery. Look For Danger

Be Aware Preventing injury Know where your hands are at all times. Best practice: Put your hands in your pockets when not working. Look before you move. Move deliberately - cautiously. Always ask yourself, “What happens if…” Tool slips? Hand slips? Feet slip? Be Aware

Be Serious 2.2 - Personal conduct No horseplay or practical jokes allowed! Do not engage in unnecessary or loud talking. Do not interrupt others unnecessarily. Keep a clean work area. Be Serious

Be Professional Shop etiquette Never borrow tools without first asking. Respect the professional Machinists. Don’t make unreasonable demands (“I need it yesterday”, etc.) Clean up after yourself. Best Practice: Leave workspace at least as clean as you found it. Put away all tools. Wipe clean first. Put where/how found. Be Professional

Planned Break Any questions so far?

2.3 – Proper Shop Attire Hat or tie back long hair. Wear Safety glasses (Always). Ear Plugs (As needed). Wear short sleeve shirt and tuck in. Remove watch. Remove rings/jewelry. Wear long pants. Leather shoes best.

2.4 – General Safety practices Never use equipment without proper training! Do not tamper with safety devices. Keep the workplace clean. Handle tools with care. Don’t start the machine before checking area is clear. Don’t use unsafe work-holding.

General safety practices Wear safety glasses at all times in shop. Not just at CNC machine. Know how to use Emergency Stop. Never work alone. Only 1 person in charge of machine at a time. Never use hands or air hose to clear chips. Best practice: Use a paint brush instead.

General Safety practices Clean spills immediately. Store oily rags in fireproof can. Oily rags can spontaneously combust . Lift with legs, not back. Do not lift heavy objects alone. Get help or use a lift.

2.5 - CNC Safety practices Never leave CNC machine running unattended. End program with part nearest operator. So you don’t have to lean far into machine to load/unload part. Remove tools from spindle at end of day. Avoid contact with coolant. Immediately wash and treat cuts. Report all injuries.

“First article” safety Use machine rapid and feed override. Ensure Tool Length Offsets (TLO) correct. Ensure Fixture Offsets correct. Extra caution at starts & tool changes. Keep hand near E-Stop. Stop machine at first sign of trouble.

Summary What you don’t know can hurt you. Never use equipment you have not been trained to use by qualified instructor. Wear safety glasses or goggles at all times in the shop area. Wear appropriate shop clothing. Exercise caution when running new programs. Be professional and serious. Practice good etiquette when dealing with peers and shop personnel. Obey all shop regulations. Cultivate an attitude of caution and safety. Be mindful at all times. Nothing is worth hurting yourself to get done.