Wt4603 unit9 week10
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WT4603 Wood Processing Safety & Practice
Lecture Unit 9
The Lathe & Exam Revision Lecturer: Mr. Joseph Lyster [email protected] Notes prepared by: Mr. Joseph Lyster Notes available on www.slideshare.net/WT4603
Department of Manufacturing & Operations Engineering
WT4603
Wood Turning Lathe• Purpose• Types of lather
• Stand alone• Bench mounted• Tools
• Anatomy• Operational Procedures• Mechanics• Health & Safety• Type of work• Tools• Example of primary work
Department of Manufacturing & Operations Engineering
WT4603
Wood Turning Lathe
www.irishwoodturnersguild.com
• The art or process of shaping wood into forms on a lathe.
Department of Manufacturing & Operations Engineering
WT4603
Stand Alone Lathe
Bench Mounted Lathe
Primary Wood Turning Tools
Department of Manufacturing & Operations Engineering
WT4603
Wood Lathe Anatomy• Start/Stop Control• Headstock• Tailstock• Bed• Tool Rest• Tailstock Hand Wheel• Tailstock Spindle• Spindle Lock• Faceplate• Variable Speed Control• Locking Lever
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
WT4603
Department of Manufacturing & Operations Engineering
Department of Manufacturing & Operations Engineering
WT4603
• Wear safety goggles or face shield to protect yourself from flying chips.• Wear hearing protection that is suitable for the level and frequency of the noise you are exposed to in the
woodworking area.• Wear a dusk mask when dust is generated (e.g., during sanding operations).• Work in well-lighted area.• Before the lathe is turned on, ensure that all clamps and fittings are secure and that the work piece is free to turn. • Use stock free of defects. • Hold tools firmly with both hands and against the tool rest. • Hold the stock securely on the faceplate or between the centres. • Use only furnished or approved tools. • Use sharp, well-maintained chisels and gouges. • Select a speed that is appropriate for the job. Operate the lathe at a low speed and use a moderate cut depth to
prevent splinters from flying out during roughing operations. The actual speed of the lathe depends on type of wood, a diameter of stock, nature of work being done and type of tool used.
• Adjust tool rests so that they are parallel and as close as possible to the stock. They should also be set high enough so that tools will cut into the wood slightly above the centre of the work being turned.
• Remove the tool rest when sanding or polishing. • Use appropriate tools to hold the sand paper or emery paper whenever possible. Examples include a 'nut cracker'
or the paper fixed to a piece of flat wood. If you must use your hands always hold the paper in a way that will allow the paper to catch, pull or entangle around the stock.
• To make a faceplate turning, the one hand steadies the tip of the chisel, which holds the edge against the tool rest while the other hand guides the tool. Keep the tip of the chisel held higher than the handle.
Operational Procedures
Department of Manufacturing & Operations Engineering
WT4603
• Ø x RPM = Lathe Speed
• Normally this is outlined on the machine information panel along with belt adjustment settings
Lathe Speed
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Hazards Risk Control Measures
1 Entanglement Lab coats, securing of long hair and loose garments/Jewellery
2 Violent Ejection Secure work piece properly, lock tailstock to bed
3 Piece Spinning RPM/Material size
4 Electric Shock Ensure electrical casing intact for all components
5 Cuts Swarf ejection, hand jewellery
6 Inadvertent Starting Flush start, stop cap control system, isolator
7 Pinch Point Mechanical belt adjustment
8 Moving Tool Rest Lock/clamp handle
Wood Turning Lathe
Risk Assessment
Department of Manufacturing & Operations Engineering
WT4603
1. ENTANGLEMENTSEVERITY
Slightly Harmful
Moderately Harmful
Quite Harmful
Very Harmful
Extremely Harmful
LIKELIHOO
D
Highly Unlikely Trivial Tolerable Tolerable Moderate Moderate
Quiet Unlikely Tolerable Tolerable Moderate Moderate Substantial
Likely Tolerable Moderate Moderate Substantial Substantial
Quite Likely Moderate Moderate Substantial Substantial Intolerable
Highly Likely Moderate Substantial Substantial Intolerable Intolerable
Department of Manufacturing & Operations Engineering
WT4603
2. VIOLENT EJECTIONSEVERITY
Slightly Harmful
Moderately Harmful
Quite Harmful
Very Harmful
Extremely Harmful
LIKELIHOO
D
Highly Unlikely Trivial Tolerable Tolerable Moderate Moderate
Quiet Unlikely Tolerable Tolerable Moderate Moderate Substantial
Likely Tolerable Moderate Moderate Substantial Substantial
Quite Likely Moderate Moderate Substantial Substantial Intolerable
Highly Likely Moderate Substantial Substantial Intolerable Intolerable
Department of Manufacturing & Operations Engineering
WT4603
3. PIECE SPINNINGSEVERITY
Slightly Harmful
Moderately Harmful
Quite Harmful
Very Harmful
Extremely Harmful
LIKELIHOO
D
Highly Unlikely Trivial Tolerable Tolerable Moderate Moderate
Quiet Unlikely Tolerable Tolerable Moderate Moderate Substantial
Likely Tolerable Moderate Moderate Substantial Substantial
Quite Likely Moderate Moderate Substantial Substantial Intolerable
Highly Likely Moderate Substantial Substantial Intolerable Intolerable
Department of Manufacturing & Operations Engineering
WT4603
4. ELECTRIC SHOCKSEVERITY
Slightly Harmful
Moderately Harmful
Quite Harmful
Very Harmful
Extremely Harmful
LIKELIHOO
D
Highly Unlikely Trivial Tolerable Tolerable Moderate Moderate
Quiet Unlikely Tolerable Tolerable Moderate Moderate Substantial
Likely Tolerable Moderate Moderate Substantial Substantial
Quite Likely Moderate Moderate Substantial Substantial Intolerable
Highly Likely Moderate Substantial Substantial Intolerable Intolerable
Department of Manufacturing & Operations Engineering
WT4603
5. CUTSSEVERITY
Slightly Harmful
Moderately Harmful
Quite Harmful
Very Harmful
Extremely Harmful
LIKELIHOO
D
Highly Unlikely Trivial Tolerable Tolerable Moderate Moderate
Quiet Unlikely Tolerable Tolerable Moderate Moderate Substantial
Likely Tolerable Moderate Moderate Substantial Substantial
Quite Likely Moderate Moderate Substantial Substantial Intolerable
Highly Likely Moderate Substantial Substantial Intolerable Intolerable
Department of Manufacturing & Operations Engineering
WT4603
6. INADVERTENT STARTING
SEVERITYSlightly Harmful
Moderately Harmful
Quite Harmful
Very Harmful
Extremely Harmful
LIKELIHOO
D
Highly Unlikely Trivial Tolerable Tolerable Moderate Moderate
Quiet Unlikely Tolerable Tolerable Moderate Moderate Substantial
Likely Tolerable Moderate Moderate Substantial Substantial
Quite Likely Moderate Moderate Substantial Substantial Intolerable
Highly Likely Moderate Substantial Substantial Intolerable Intolerable
Department of Manufacturing & Operations Engineering
WT4603
7. PINCH POINTSEVERITY
Slightly Harmful
Moderately Harmful
Quite Harmful
Very Harmful
Extremely Harmful
LIKELIHOO
D
Highly Unlikely Trivial Tolerable Tolerable Moderate Moderate
Quiet Unlikely Tolerable Tolerable Moderate Moderate Substantial
Likely Tolerable Moderate Moderate Substantial Substantial
Quite Likely Moderate Moderate Substantial Substantial Intolerable
Highly Likely Moderate Substantial Substantial Intolerable Intolerable
Department of Manufacturing & Operations Engineering
WT4603
8. MOVING TOOL RESTSEVERITY
Slightly Harmful
Moderately Harmful
Quite Harmful
Very Harmful
Extremely Harmful
LIKELIHOO
D
Highly Unlikely Trivial Tolerable Tolerable Moderate Moderate
Quiet Unlikely Tolerable Tolerable Moderate Moderate Substantial
Likely Tolerable Moderate Moderate Substantial Substantial
Quite Likely Moderate Moderate Substantial Substantial Intolerable
Highly Likely Moderate Substantial Substantial Intolerable Intolerable
Department of Manufacturing & Operations Engineering
WT4603
RISK ASSESSMENT
Location: SR2-047 Date: 24-09-2010 Assessment Carried out by: Mr. Joe Lyster
Assessment of: WOOD TURNING LATHE CE Marking (Machines): Yes No □□̷�
Page 1 of 1 Assessment Review Date: 12-11-2010
HAZARD RISK MAGNITUDE PERSONS AT RISK EXISTING CONTROLS REQUIRED CONTROLS PERSONS RESPONSIBLE TARGET DATE
1. Entanglement Intolerable User of Machine Securing Clothes/HairLab coats, securing of
long hair and loose garments/Jewellery
Teacher/Students 12-11-2010
2. Violent Ejection Substantial All in Class Headstock/Tail stock – material preparation
Secure work piece properly, lock
tailstock to bedTeacher/Students 12-11-2010
3. Piece Spinning Substantial All in Vicinity Clamping/Speed Set up RPM/Material size Teacher/Students 12-11-2010
4. Electric Shock Hazards Moderate User of Machine Inspection of
EquipmentElectrical casing intact
for all componentsTeacher/Students 12-11-2010
5. Cuts Substantial User of Machine Training/PPESwarf ejection, hand
jewellery, tool handing, User PPE i.e.
face shieldTeacher/Students 12-11-2010
6. Inadvertent Starting Moderate All in Vicinity Lockable Isolator
SwitchFlush start, stop cap
control system, isolator
Teacher/Students 12-11-2010
7. Pinch Point Substantial User of Machine TrainingMechanical belt
adjustment, chuck removal, tool
handlingTeacher/Students 12-11-2010
8. Moving Tool Rest Substantial User of Machine Bed lock handle Bed lock handle Teacher/Students 12-11-2010
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603
Exam Techniques:• Question Types• Marking Scheme• Response types –Bullet points• Notes• Sketches + Annotations• Colour• Rough work
Department of Manufacturing & Operations Engineering
WT4603
Department of Manufacturing & Operations Engineering
WT4603