Transcript Manufacturing Laboratory

Manufacturing Laboratory
Lab 1:
Safety in the Lab
Safety – Violation Consequences
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Consequences of safety violations
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Personal injuries
Equipment destruction
Constant supervision by a classmate
Failing a section of the laboratory coursework
Dismissal from the CNC course
Legal recourse taken by victims for damages
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Safety – Horseplay
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NO HORSEPLAY at ANY TIME
Horseplay is defined as:
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“Any rowdy or boisterous play”
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Any injury in the industrial workplace resulting from horseplay
may exempt the violator from workman’s compensation coverage
Immediate termination of employment often occurs due to the
liability that horseplay represents
Any person participating in horseplay while in the laboratory environment
will be reviewed for punitive action
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Horseplay can be distracting and cause unintentional actions of others
while involved with dangerous activities, or cause mistakes either in
calculation or action which result in injury and/or equipment damage
Safety Glasses
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Safety glasses will be worn at all times while ANY tool work
or machine is in operation
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Cutting wire can create metal projectiles
Using a hammer can create projectiles
Using an oil-can can express fluids over large distances into
the eyes
Opening machine guards allows loose materials to be blown
into the eyes
Using a cleaning brush can launch particles
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Safety – Loose Clothing
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All loose clothing (and hair) will be secured or removed
around rotating equipment
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Even gloves are a severe hazard near rotating
parts; and vise-grip pliers or other tools should be
used to provide a secure hold and safe distance
between the rotating tool/part and personnel
The inertia of a rotating tool can mangle body
parts long before personnel realize that the
rotating tool/part has grabbed them
Waste Disposal – Oily Rags
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Oily rags and oily paper products SHALL ONLY be placed in
covered metal containers painted in red
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Oil and other fluids in the presence of paper or cloth can
cause spontaneous combustion
Covering the can limits the oxygen available to burn
Covering the metal can limits the boundaries for burning
adjacent materials
DO NOT dispose of any material in these containers unless
they are oily
Waste Disposal – Metal Shavings
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Metal shavings shall be gently disposed of in a metal trash can
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Metal shavings can be needle-like
Metal shavings are often oil soaked and a fire hazard
Metal shavings are often small and can become airborne
creating an eye hazard
Metal shavings can be razor-like and easily cut the eyes,
skin, clothing, and other surfaces
Only metal will be disposed of in a dedicated metal can so
that the contents can be recycled
Waste Disposal – Plastic & Wood
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Plastic and wood waste products can be
needle-like and shall be gently disposed of in
any trash can
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This does not diminish the health hazard these
waste products represent when considering the
eyes, lungs, and skin
Wear a dust mask, eye protection, and gloves
when cleaning up waste plastic and wood
Other Safety Issues
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To reiterate, No gloves
Remove Jewelry
Wear appropriate shoes
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No open toed sandals
Wear shoes that give sure footing
If you are working with heavy objects, steel toes
are recommended
Safe Conduct in the Shop
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Be aware of what is going on around you
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Concentrate on what you are doing
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If you catch yourself rushing, slow down
Don’t rush speeds and feeds
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If you get tired, leave
Don’t hurry
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For example, be careful not to bump into someone while they are cutting with the
bandsaw (they could lose a finger!).
You will end up damaging your part, the tools, and maybe the machine itself
Listen to the machine
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If something does not sound right, turn the machine off
Machining Safety
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Don’t let someone else talk you into doing something
dangerous
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Don’t attempt to measure a part that is moving
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If you don’t know how to do something, ask!
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Do not set up or operate any machinery unless an
instructor is in the shop
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Do not operate any machine unless authorized to do so by an
instructor or under an instructor’s supervision
Lock-Out Tag-Out
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A lockable hasp has been designed for locking
electrical circuit panels so that power and equipment
can not be inadvertently started while workers are
performing potentially dangerous maintenance
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The Tag hanging from the locked hasp specifically says
“Danger”; the workers’ name & contact info is on the back
ONLY the person who installed the tag may remove it; their
supervisor may remove the tag but they are accepting all
related liabilities
Tampering with a Lock-Out is a criminal offense and can be
prosecuted accordingly
Common Sense Machine Safety
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Before you start the machine:
Study the machine. Know which parts move, which
are stationary, and which are sharp.
Double check that your work piece is securely held.
Remove chuck keys and wrenches.
Do not leave machines running unattended!
Cleanup
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Clean up machines after you use them!
A dirty machine is unsafe and uncomfortable to work on.
Do not use compressed air to blow machines clean. This endangers
people’s eyes and can force dirt into machine bearings.
Use the proper tool for the job.
Many cuts in the shop occur because a wrench slips and a hand hits a
sharp cutting tools.
Check tools before use to assure they are safe to use.
Do not leave tools or work on the table of a machine even if the
machine is not running.
Tools or work may fall off and cause a toe or foot injury.
Put tools away when not in use.
Place all scrap pieces in the correct containers.
More Safety
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Never handle chips with your hands or fingers, or rags.
Chips are extremely sharp and can easily cause cuts.
Use a brush to remove chips.
Never wear gloves or use rages to clean the workpiece or any
part of a machine that is running.
Rotating tools or parts can grab gloves and rages and pull you into the
machine.
Never use compressed air to clean any machine.
If using compressed air to clean a part, point the air hose down and
away from yourself and other persons.
Never use compressed air to clean your clothes or yourself.
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Particulate can be injected under the skin or make particulate airborne
Machining Safety
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Do not run in the shop; there should be no “fooling around” in
the shop at any time
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Don’t be a “wise guy”
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Do not walk behind a person operating a machine
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You may bump the other person by accident or startle them and cause
an accident
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Get first aid immediately for any injury
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Get help for handling large, long, or heavy pieces of material or
machine attachments
Personal Safety
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Follow safe lifting practices
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Lift with your leg muscles—not your back
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If you do not know how to lift safely, ask an instructor to show you
Be sure you have sufficient light to see clearly
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Check with an instructor if you do not have enough light
Aisles should be clear at all times to avoid tripping or other
accidents
More Safety
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Store materials in such a way that they cannot become
tripping hazards
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Keep the floor free of oil, grease, or any other type of
liquid.
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Clean up spilled liquids immediately; they are slipping hazards.
Machines can easily grab loose clothing in rotating parts.
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All set-screws should be of the flush or recessed type.
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If they are not, move with caution when near them.
Projecting set-screws are very dangerous because they may catch on
sleeves or clothing.
Networked Safety
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Don’t just look out for yourself, think of others
near you
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If you see an unsafe condition
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Let the persons involved know as soon as practical
Do NOT distract others while informing them of safety
issues
Don’t be shy, have good character and speak up when
you see a potential safety issue
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Safety issues unnoticed are particularly dangerous
The instructor can diplomatically address safety issues