Working in ET112

Safety in the Machine Shop

Lecture Video

Safety Quiz

• See Lab Safety Handout
• Some test questions will come from:
• General
• Hand Tools
• Drill Press
• Engine Lathe
• Milling Machine
• Compressed Air
• Disk/Belt Sander
• AND this lecture

NOTE: There is also a lab safety quiz based on a different set of notes: MACHINE SHOP SAFETY

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See ECOURSEWARE for LAB section

Material Safety Data Sheets (SDS)

See important SDS publications on the course website.

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• WD40
• Trim SOL (cutting fluid)
• Leaded Brass
• Cemented Tungsten Carbide (Cutting tools)

Related Documents

• Welding Safety
• Arc Welding Safety
• Resistance Welding

Some Headlines

JOHN CHRISTOFFERSEN Associated Press 5:54 p.m. CDT, April 13, 2011

• NEW HAVEN, Connecticut (AP) — A Yale University student nearing graduation was killed inside a school chemistry lab when her hair was pulled into a piece of machine-shop equipment, school officials said Wednesday.Michele Dufault, a senior majoring in physics and astronomy, died Tuesday night after her hair became caught in a fast-spinning lathe, university President Richard Levin said. Her body was found by other students who had been working in the building, he said."This is a true tragedy," Levin wrote in a message to Yale students and faculty.

Facebook.com

Some Headlines (Cont’d)

• GIRL LOSES 2 FINGERS IN LATHE ACCIDENT
• Hartford Courant - Hartford, Conn.Author: JEFFREY COHEN; Courant Staff Writer Date: May 20, 2003 Start Page: B.5 Section: CONNECTICUT
• "When they shut the machine off, the hair had tightened so tightly it degloved" her fingers, [Gene LaPorta] said, explaining that her hair ripped the skin off her fingers. "What was left was a shard of bone.”

Some Headlines (Cont’d)

• SCALPING ACCIDENT FUELS TALES OF DANGER
• Orlando Sentinel - Orlando, Fla.Author: Anthony Colarossi, Sentinel Staff Writer Date: May 31, 2001 Start Page: D.3 Section: LOCAL & STATE
• G.W. Schultz is in the same industrial cluster as Qualtool, the Tavares facility where [Norma Miller], 49, was "scalped" by a rotating bar on her drill socket-building machine last week. Miller was attempting to clean filings from the machine, when the bar caught her bangs and ripped her scalp off in seconds.

Some Headlines (Cont’d)

• Worker killed in machine accident
• St. Petersburg Times - St. Petersburg, Fla.Author: DONG-PHUONG NGUYEN; MIKE BRASSFIELD Date: Feb 9, 2002 Start Page: 3.B
• Gordon Moffat planned to go fishing in Tampa Bay today. Instead, his family is planning a funeral for the 65-year-old St. Petersburg grandfather who died in an accident Friday at the Tampa machine shop where he worked.
• Moffat had been employed at the company for about five years and was working on the machine alone. He fed metal sheets into the machine, which then created grooves in the metal, [Joe Durkin] said.
• Moffat leaves behind four children and five grandchildren. His friends were baffled by Friday's accident because they said Moffat was always safety conscious, even while working on his beloved fishing boat.

Avoiding Injury

• Eyewear
• Will be provided, but you may bring your own
• Required in the shop at all times
• Must be ANSI Z87.1 Approved
• Must be clear or yellow
• Even a small particle can be dangerous and painful

Avoiding Injury (cont’d)

• Clothing
• Nothing below the elbow
• This can lead to entanglement
• No loose clothing or jewelry
• No USB lanyards
• No Drawstrings (hood, or waist)
• Pockets and buttons are not recommended
• Natural fibers are preferred
• hot chips won’t tend to melt through

Main Hazards

• Rotating Machinery
• Entanglement
• Projectiles (chuck key)
• Eye Hazards
• Sharp Parts/Tools
• “Chips”
• Particles
• Other Hazards
• See handout

Avoiding Injury (cont’d)

• Chuck Key
• Note: The chuck key must never be in the chuck without your hand being on it. Not even momentarily.

Avoiding Injury (cont’d)

• Hair
• Scalping injuries are real
• Hair must be kept up
• Keep your head and hands away from rotating machinery

• Rotating parts on back of headstock
• Rotating parts on the front of the lathe

Avoiding Injury (cont’d)

• Shoes
• No open-toe shoes are allowed in the shop
• Steel toe work boots are preferred
• Sneakers are permitted, but not the best choice

Avoiding Injury (cont’d)

• Safe operation
• One operator at a time at any machine
• Avoid rotating parts
• Machines do not stop automatically

• Keep hands clear
• Chips are Sharp!
• Edges are Sharp!

Avoiding Injury (cont’d)

• These are not suggestions.
• Anyone not following these safety guidelines will be dismissed from the lab.
• This will affect your grade.
• Rule: If you don’t understand it, don’t do it.
• Rule: If in doubt, ask!
• Rule: If you don’t feel safe, don’t do it.

Show up for lab ON TIME

I will be going over safety instructions at the beginning of the labs.  You must be present when I give these instructions. 

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The door will be shut and locked at the beginning of lab.

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Food, Drink & Tobacco Products

Are not allowed in lab.

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Throw away your trash before coming into the lab.

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