Metals Processing 110

Shop Safety

Safety is no accident !

• As you view these slides, you should realize that a major part of shop safety is based upon common sense and thinking ahead. It is an accepted fact that forethought and the elimination of carelessness can avoid most shop accidents.

•This unit is designed to familiarize students with common shop hazards. Its goal is to prevent injuries to the people who use the shop facilities.

Safety Symbols

Flammable Reactive Compressed Gas Bio-Hazardous

Dangerously

Reactive Toxic Corrosive Poison

Always wear SAFETY GLASSES in the shop.

DO NOT WEAR: • Sandals • Shorts, or cutoffs • Tank tops, muscle shirts, etc. • Neckties• Loose or torn clothing • Rings, watches, bracelets, or other jewelry

that could get caught in moving machinery • Long sleeves (Machines can easily grab

loose clothing in rotating parts.)

Wear clothing appropriate for the job.

Don’t be “hair-brained”!

Wear your hair suitable for the trade. You may protect long hair

by:

1. Tying it neatly behind your head 2. Wearing a hair net .

General Safety Tips• Do not operate any machine unless authorized to do so by an

instructor or under an instructor's supervision. • Do not set up or operate any machinery unless an instructor is

in the shop.• Use the proper tool for the job. Many cuts in the shop occur

when a wrench slips and a hand hits a sharp cutting tool. • Check tools before use to assure they are safe.• Aisles should be clear at all times to avoid tripping or other

accidents. • Keep the floor free of oil, grease, or any other type of liquid.

Clean up spilled liquids immediately: they are slipping hazards.

• Put tools away when not in use. • Place all scrap pieces in the correct containers. • Never handle chips with your hands or fingers. Chips are

extremely sharp. Use a brush to remove chips.

General Safety Tips (continued)

• Never wear gloves or use rags to clean the work piece or any part of a machine that is running. Rotating tools or parts can grab gloves and rags and pull you into the machine.

• Never use compressed air to clean any machine.

• Do not run in the shop; there should be no “fooling around”.

• Get first aid immediately for any injury.

• Be careful around a person operating machinery: you may bump or startle him or her and cause an accident.

• Make all adjustments with the machine off and locked out.

• Do not use machines without proper guards in place.

Special eye protection for welding or cutting is required!

Never look at a welding flash!

Welding

Never leave the key in the lathe chuck.

Cutting fluid can cause slippery floor conditions.

Use a material to soak up the liquid (speedy dry, cat-litter, sawdust) when needed.

•All persons must wear safety glasses in the shop area.

•If you wear prescription eye glasses, they must be covered by an approved safety glass.

Safety Glasses

Be aware! Cutting metal pieces can generate heat; gloves may be

needed.

Band Saw Safety

• Receive instruction before using.

• Remove rings, watch, and roll up sleeves.

• Wear safety glasses.• Make adjustments with

power off.• Adjust upper guide 1/8

inch above material being cut.

• Do not leave machine running unattended.

Adjust upper guide 1/8 inch above material being cut.

adjustment dial

Lathe Safety • Receive instruction before

using. • Remove rings, watch, and roll

up sleeves.• Wear safety glasses.• Make adjustments with power

off.• Finish cut close to the chuck

or against a shoulder by hand feed only.

• Rotate spindle by hand to check clearance before engaging power.

• Keep hands away from chips.• Shut off power, and clean

lathe before you leave it.

Brush away metal chips. Never use your

hand, a rag, a glove, or compressed air.

Be aware of sharp burrs produced by machining.

Protruding parts that rotate can catch clothing and jewelry

Drill Press Safety

• Receive instruction before using.

• Remove rings, watch, and roll up sleeves.

• Wear safety glasses.• Make adjustments with power

off.• Check the location of chuck

key before turning on power.• Adjust the table and drill to

avoid drilling into table.• Ensure all belts and pulleys

are covered with guards.

Never leave key in drill chuck.

Keep vice handles to the left. For holes 1\2 inch in diameter or larger, the vice should

be held securely in place by

or bolting through the table slots.

using the cam clamps

Cutoff Saw Safety

• Receive instruction before using. • Remove rings, watch, and roll up sleeves.• Wear safety glasses.• Make adjustments with power off.• Make sure all guards are in place.• Depress safety start button on side of handle • Stand to one side of the saw as you cut.• Apply consistent downward pressure while

cutting.

Cutoff Saw

safety switch button

The safety switch must be depressed before the saw can start.

Protect others by using a partition to guard against flying sparks or

debris.

Grinders

• Receive instruction before using. • Remove rings, watch, and roll up sleeves.• Wear safety glasses.• Make adjustments with power off.• Make sure all guards are in place.• Adjust tool rest to 1/16 inch from the wheel.• Stand to one side when starting grinder.• Inspect grinder wheels for cracks or chips and replace if

needed.

1\16 inch gap between wheel and tool rest