found on internet to use as a teaching guide.

1. Machine Shop Safety and Practice
Robin Coope
May 10 2006
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
Machine Shop Qualifications
• Users with the 10 hour course can
only work under supervision of the
shop manager Ernest Diamante or a
qualified Physics 253 Instructor.
This does NOT extend past the end
of Physics 253.
• Users with the 40 hour course
must work with at least one other
person in the shop
• There is a maximum of ten people
in shop.
A Qualified Physics 253 Instructor!
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
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2. Machine Shop Safety
• Safety first! Call 911 for
emergency and report all injuries to
Long Hair
shop supervisor.
• Safety glasses must be worn in
shop.
• No bare feet, sandals, slippers or
open toe shoes are permitted.
• Minimum foot protection of sneakers
and socks is required.
• Tie up/secure long hair and remove
rings, bracelets etc... Bad Hair
Do not wear loose fitting clothing.
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
Machine Shop Safety
• Keep your work area free and
clear of excessive chips and
clutter.
• Be careful when using
compressed air hoses. Do not
blow chips/ debris towards
yourself or others.
• Never touch chips or rotating
tooling with your bare hands or
fingers when a machine is
running.
• Never leave chuck key or
wrenches unattended in
machines.
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
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3. Machine Shop Safety
• Keep the shop doors closed after hours or when
supervisor is not present. Do not leave any
unauthorized people in the shop. No key, no
admittance.
• Sign out all tools removed from the shop. Write
your name, phone number and room number.
Return tools promptly.
• If unsure, ask for assistance.
• Report damage to tools and machines to the
shop supervisor. After hours, leave a note.
• Clean up! Dust pans brushes and booms are
provided
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
Machine Shop Organization
• All tools live in
specified locations for
easy retrieval.
• This makes cleanup
much easier: just put
things back in the
proper drawer.
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
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4. Key Hazards
• Cutting Fingers on Sharp Tools
• Minor burns from hot parts or chips
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
Key Hazards
One worker one machine!!!
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
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5. Tools: Sheet Metal
Sheer Bender (brake)
• Different band saws for steel and Aluminum
• Blade quality is important for safety
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
More About Band Saws
• Lubricate blade with wax
block
• Fences and Tees do not
work very well with sheet
stock – cut freehand
• Use wood push block to
feed work on the band
saw.
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
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6. More About Band Saws
• Clamp round parts
in an upside down
vise.
• Cut steel rod with
a hacksaw!
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
Tools: Milling Machine
• Particularly useful
for accurate layouts
• Can mill and drill
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
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7. Tools: Milling Machine
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
Tools: Milling Machine
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
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8. Tools: Lathe
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
Tools: Lathe
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
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9. Tools: Lathe
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
Tools: Lathe
• Lathes are more
dangerous than mills as
the spinning parts are
larger and heavier.
• The SMS lathes are
relatively small though.
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
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10. Tools: Sander/Grinder
• Useful for quick
material removal on
outside surfaces
• Parts heat up very
quickly and can burn
• Use a water bath to
cool the part, then
dry machine after
use.
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
Tools: Sander/Grinder
Grinder for tool steel only!!!!!!
No Aluminum !!!!!!!!
The scotch wheel is your
finishing friend.
Can semi-polish and deburr
rapidly and safely
Much safer than a polishing
wheel
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
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11. Tools: Drill Press
Careful changing speeds on
drills and lathes
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
Tools: Drill Press
• Properly clamp all work in vise on drill
presses when ever possible.
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
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12. Tools: Drill Press
What is wrong
with this picture?
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
Tools: Drill Press and Milling
Machine
Always use specially
modified drills when drilling
brass or plastic.
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
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13. Hand Working
• Often faster than machines
• Many different shapes of files are
available
• Use a file card
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
Remember
Your three priorities in a machine shop are safety,
accuracy and speed.
Never sacrifice safety.
UBC Department of Physics and Astronomy / UBC Engineering Physics Applied Biophysics Laboratory
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