Introductory presentation on turning and lathes.

1. An Introduction to Turning
Mani Kang

2. What are British values?
• Democracy
• the rule of law
 Health and Safety at Work Act 1974
• individual liberty and mutual respect and
• tolerance for those with different faiths and beliefs.
How do you want to be treated whilst on the Section?
THE CLASSROOM

3. A Lathe machine tool

4. Training - Aim
• To provide the skills and knowledge required to operate a centre lathe
• To have a knowledge of the dangers on the section.

5. Training - Objectives
By the end of this training session you will be able to:
• Employ Safe Working on the Turning Section
• Practice setting up a lathe and its tooling
• Show how you would use a lathe safely
• Demonstrate how to clean down the lathe.
• Complete the Turning unit 013 and associated written tasks

6. Turning Safety Rules
What are your responsibilities?
Each employee has a responsibility under the Health and Safety at Work Act 1974 to:
“Take reasonable care for health, safety and welfare of him/herself and of other
persons, who may be affected by his/her acts or omissions and that no person shall
intentionally or recklessly interfere with or misuse anything provided in the interests of
health and safety. Remember you could be liable for prosecution, fine or imprisonment
for contravention of the Health and Safety at Work Act.”

7. Turning Safety Rules
Know how to stop the machine in an emergency.
Chuck Guards
Machine Safety
Manual Lifting
Handling Coolant & Swarf Safely
Eye Protection
COSHH Regulations
Care of the coolant

8. Turning Safety Rules
Skin Care Products
Overalls & PPE
Fitting Attachments
Fitting Cutters & Holders
Cutting Direction
Fitting the Chuck
Be In Control
Safe Inspection

9. Turning Safety Rules
Chuck Key Safety
Entanglement Hazards
Hand Tool Safety
Safe movement around the workshop

10. Machine Safety
Respect the machines.
What is the most intelligent part of the machine?
Its You.

11. Personal Safety
Always be aware of the dangers.
What dangers are there on Turning?

12. PARTS OF A LATHE

13. Function of the parts
• Headstock – houses the spindle and the gearbox.
• Tailstock – can be used for mounting drill chucks, large drills/reamers
directly and dead/revolving centres.
• Carriage – has movement along the bed of the machine in the Z axis.
This is where you’ll find the hand wheels and the feed controls.
• Saddle – The top of the carriage where the tool post is bolted to. Has
movement in the X axis.

14. Function of the parts
• Tool Post – There are three positions where a tool can be set. Each
tool requires a tool holder.
• Compound Slide – Can be set at a specific angle to turn internal or
external tapers. Must be fed by hand.
• Feed Selection Lever – Selects whether the machine feeds in the X or Z
axis.

15. Function of the parts
• Start/stop Lever – Determines whether the machine starts in a
clockwise or anti-clockwise direction.
• Treadle Brake – A foot bar used to stop the lathe dead.
• Lubrication Pump – Used to lubricate the slide ways. It is located on
the carriage.

16. Investigation exercise
Task
Complete the investigation exercise in your booklet.
Feel free to turn some handles on the lathes; they are isolated and
locked off so they can’t be started up.

17. Setting up a Work-holding Device

18. Setting up a Work-holding Device

19. Setting up a Work-holding Device

20. Types of Work-holding Device
Three Jaw Chuck
• All jaws open/close together.
• Only for round/hexagonal parts.
• Self centering

21. Types of Work-holding Device
Four Jaw Chuck
• All jaws operate independently.
• Can hold squares, rectangles &
irregular shapes as well as round
components.

22. Tool Check
Sheets

23. Asset Care
Sheets

24. Metal
Cutting Fluid
Care Sheets

25. Types of Operations

26. Types of Operations
Facing
Cleaning up the end of a component. This
process can be used to machine a component
to length.

27. Types of Operations
Turning
Machining a component to a specific diameter
and length.

28. Types of Operations
Drilling
Using the tailstock to drill a hole in the centre*
of a component.
*usually!

29. Types of Operations
Boring
Enlarging an existing hole to a specific size and
depth.

30. Types of Operations
Taper Turning
Machining an angle (external/internal) on a
component.

31. Types of Operations
Knurling
Forming an imprinted pattern on the outside
of a component.

32. Types of Operations
Recessing
Machining a groove to a specific depth and
width.
Sometimes referred to as grooving or
undercutting.

33. Types of Operations
Parting-off
Separating a component from the material
being held in the chuck.

34. Types of Operations
Forming
Using a pre-ground tool to form a shape on a
component.
Chamfers, radii etc.

35. Setting a Cutting Tool to centre height
Tool set too low
Tool set too high
Tool set correctly at centre height

36. Types of Tools

37. Cutting Tool Angles

38. Cutting Tool Materials
High Speed Steel
Cobalt High Speed Steel
Tungsten Carbide

39. Characteristics of Tool Material
• Hot Hardness
• Strength and Resistance to Shock
• Low Coefficient of Friction

40. Cutting Speeds
For Reaming the RPM is approximately 50% of the
RPM used for drilling

41. Cutting Speeds
Task:
Calculate this cutting speed for mild steel and aluminium
What differences did you notice ?

42. Roughing & Finishing Cuts
Roughing
• Generally done at a higher cutting depth.
Finishing
• Generally done at a lower cutting depth.

43. An Introduction to
Assessment
Mani Kang

44. Assessment - Aim
• To work independently, manufacturing a number of tasks that
demonstrates your skills and knowledge associated with Centre
Lathes.

45. Assessment AUEC2- 013 - Objectives
• Task 1 demonstrate the skills, knowledge and behaviours required
manufacturing a Nylon Task using a 3 Jaw Chuck an associated lathe
tooling.
• Task 2 demonstrate the skills, knowledge and behaviours required
whilst manufacturing an complete Bearing Cover using a 4 Jaw Chuck.

46. Assessment Task 1/Unit 028
Nylon Task

47. Assessment Task 2 Unit 028
Bearing Cover

48. Assessment (Grinding) - Objective
• To demonstrate the skills, knowledge and behaviours required whilst
grinding a HSS Lathe tool/Jobber Drill on a bench grinding machine

49. An Introduction to The
Bench Grinder
Mani Kang

50. The Bench
Grinder

51. The Bench
Grinding
Abrasive
Wheel

52. Bench Grinding
YOU ARE NOT AUTHORISED TO USE
THIS MACHINE UNSUPERVISED

53. Bench Grinding – Pre Use Checks
• Check that scheduled maintenance has taken place.
• Ensure safety glasses are worn
• Ensure work light functional
• Ensure Water tank available if required
• Ensure E Stop Functional
• Visually Check Guarding to ensure it is functional and clean

54. Bench Grinding – Pre Use Checks
• Check power switches are functional and damage free
• Inspect wheel for damage
• Ensure machine does not excessive noise/vibration
• Ensure Gap between wheel and rest less than 3mm
• Ensure wheel is not loaded with soft material i.e. aluminium
• Ensure work area is clear and free from obstructions

55. Cutting Tool Angles

56. Cutting Tool Angles

57. Drill Angles

58. Assessment – Technical Instruction
• HEALTH AND SAFETY REQUIREMENTS
• JOB TITLE
• OPERATION PLAN
• COMPONENTS LIST
• TOOLS LIST
• DOCUMENTATION USED
• MEASUREMENT AND INSPECTION
• LESSONS LEARNED
• ASSESSOR SIGNATURE & COMMENTS

59. Microsoft Word
Document
T1 - AAEF2-028: General Turning, Milling and Welding
Applications (onefile.co.uk)