Machine Shop Safety And Practice 2006

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Machine Shop Safety and PracticeRobin CoopeMay 10 2006UBC Department of Physics and Astronomy / UBC Engineering PhysicsApplied Biophysics LaboratoryMachine Shop Qualifications Users with the 10 hour course canonly work under supervision of theshop manager Ernest Diamante or aqualified Physics 253 Instructor.This does NOT extend past the endof Physics 253. Users with the 40 hour coursemust work with at least one otherperson in the shop There is a maximum of ten peoplein shop.A Qualified Physics 253 Instructor!UBC Department of Physics and Astronomy / UBC Engineering PhysicsApplied Biophysics Laboratory1

Machine Shop Safety Safety first! Call 911 foremergency and report all injuries toshop supervisor. Safety glasses must be worn inshop. No bare feet, sandals, slippers oropen toe shoes are permitted. Minimum foot protection of sneakersand socks is required. Tie up/secure long hair and removerings, bracelets etc.Do not wear loose fitting clothing.UBC Department of Physics and Astronomy / UBC Engineering PhysicsLong HairBad HairApplied Biophysics LaboratoryMachine Shop Safety Keep your work area free andclear of excessive chips andclutter. Be careful when usingcompressed air hoses. Do notblow chips/ debris towardsyourself or others. Never touch chips or rotatingtooling with your bare hands orfingers when a machine isrunning. Never leave chuck key orwrenches unattended inmachines.UBC Department of Physics and Astronomy / UBC Engineering PhysicsApplied Biophysics Laboratory2

Machine Shop Safety Keep the shop doors closed after hours or whensupervisor is not present. Do not leave anyunauthorized people in the shop. No key, noadmittance. Sign out all tools removed from the shop. Writeyour name, phone number and room number.Return tools promptly. If unsure, ask for assistance. Report damage to tools and machines to theshop supervisor. After hours, leave a note. Clean up! Dust pans brushes and booms areprovidedUBC Department of Physics and Astronomy / UBC Engineering PhysicsApplied Biophysics LaboratoryMachine Shop Organization All tools live inspecified locations foreasy retrieval. This makes cleanupmuch easier: just putthings back in theproper drawer.UBC Department of Physics and Astronomy / UBC Engineering PhysicsApplied Biophysics Laboratory3

Key Hazards Cutting Fingers on Sharp Tools Minor burns from hot parts or chipsUBC Department of Physics and Astronomy / UBC Engineering PhysicsApplied Biophysics LaboratoryKey HazardsOne worker one machine!!!UBC Department of Physics and Astronomy / UBC Engineering PhysicsApplied Biophysics Laboratory4

Tools: Sheet MetalSheer Bender (brake) Different band saws for steel and Aluminum Blade quality is important for safetyUBC Department of Physics and Astronomy / UBC Engineering PhysicsApplied Biophysics LaboratoryMore About Band Saws Lubricate blade with waxblock Fences and Tees do notwork very well with sheetstock – cut freehand Use wood push block tofeed work on the bandsaw.UBC Department of Physics and Astronomy / UBC Engineering PhysicsApplied Biophysics Laboratory5

More About Band Saws Clamp round partsin an upside downvise. Cut steel rod witha hacksaw!UBC Department of Physics and Astronomy / UBC Engineering PhysicsApplied Biophysics LaboratoryTools: Milling Machine Particularly usefulfor accurate layouts Can mill and drillUBC Department of Physics and Astronomy / UBC Engineering PhysicsApplied Biophysics Laboratory6

Tools: Milling MachineUBC Department of Physics and Astronomy / UBC Engineering PhysicsApplied Biophysics LaboratoryTools: Milling MachineUBC Department of Physics and Astronomy / UBC Engineering PhysicsApplied Biophysics Laboratory7

Tools: LatheUBC Department of Physics and Astronomy / UBC Engineering PhysicsApplied Biophysics LaboratoryTools: LatheUBC Department of Physics and Astronomy / UBC Engineering PhysicsApplied Biophysics Laboratory8

Tools: LatheUBC Department of Physics and Astronomy / UBC Engineering PhysicsApplied Biophysics LaboratoryTools: Lathe Lathes are moredangerous than mills asthe spinning parts arelarger and heavier. The SMS lathes arerelatively small though.UBC Department of Physics and Astronomy / UBC Engineering PhysicsApplied Biophysics Laboratory9

Tools: Sander/Grinder Useful for quickmaterial removal onoutside surfaces Parts heat up veryquickly and can burn Use a water bath tocool the part, thendry machine afteruse.UBC Department of Physics and Astronomy / UBC Engineering PhysicsApplied Biophysics LaboratoryTools: Sander/GrinderGrinder for tool steel only!!!!!!No Aluminum !!!!!!!!The scotch wheel is yourfinishing friend.Can semi-polish and deburrrapidly and safelyMuch safer than a polishingwheelUBC Department of Physics and Astronomy / UBC Engineering PhysicsApplied Biophysics Laboratory10

Tools: Drill PressCareful changing speeds ondrills and lathesUBC Department of Physics and Astronomy / UBC Engineering PhysicsApplied Biophysics LaboratoryTools: Drill Press Properly clamp all work in vise on drillpresses when ever possible.UBC Department of Physics and Astronomy / UBC Engineering PhysicsApplied Biophysics Laboratory11

Tools: Drill PressWhat is wrongwith this picture?UBC Department of Physics and Astronomy / UBC Engineering PhysicsApplied Biophysics LaboratoryTools: Drill Press and MillingMachineAlways use speciallymodified drills when drillingbrass or plastic.UBC Department of Physics and Astronomy / UBC Engineering PhysicsApplied Biophysics Laboratory12

Hand Working Often faster than machines Many different shapes of files areavailable Use a file cardUBC Department of Physics and Astronomy / UBC Engineering PhysicsApplied Biophysics LaboratoryRememberYour three priorities in a machine shop are safety,accuracy and speed.Never sacrifice safety.UBC Department of Physics and Astronomy / UBC Engineering PhysicsApplied Biophysics Laboratory13

Machine Shop Safety Safety first! Call 911 for emergency and report all injuries to 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. T

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