MANUFACTURING TECHNOLOGY-II - UNIT-2- Over View
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Manufacturing Technology- Unit-2 Over View
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MANUFACTURING TECHNOLOGY-II - UNIT-2- Over View
- 1. Prof.S.Sathishkumar MANUFACTURING TECHNOLOGY-II UNIT-2 TURNING MACHINES (OVER VIEW) Presented by Prof.S.Sathishkumar Assistant Professor Department of Mechanical Engineering Vel Tech (Engineering College) Avadi-chennai-62 1
- 2. TYPES OF LATHES • Speed lathes • engine lathes • Bench lathes • Tool room lathes • Capstan and turret lathes • Special purpose lathes • Automatic lathes
- 4. PARTS OF LATHE M/C • Headstock • bed • Cross slide • Compound rest • Tail stock • Feed shaft • Carriage • Lead screw • Leg • Quick change gear box
- 5. Tailstock
- 6. carriage
- 7. Tool post
- 10. Simple formula
- 11. • Thin jobs can be held by means of magnetic chucks. Collet Chuck Magnetic Chuck Collet chuck isCollet chuck is used to hold smallused to hold small workpiecesworkpieces Thin jobs can beThin jobs can be held by means ofheld by means of magnetic chucks.magnetic chucks.
- 12. Three jaw chuck - For holding- For holding cylindrical stockcylindrical stock centered.centered. - For facing/center- For facing/center drilling the end of yourdrilling the end of your aluminum stockaluminum stock Four-Jaw Chuck - This is independent chuck generally has four jaws , which are adjusted individually on the chuck face by means of adjusting screws
- 13. BACK GEARED HEAD STOCK
- 18. CAPSTAN LATHE
- 19. CAPSTAN LATHE A - Front Tool Box, B - Back Tool Post, C - Capstan Tools
- 20. LATHE
- 23. PLANER
- 26. PLANER PRINCIPLE
- 31. EDGE PLANER
- 33. HYDRAULIC DRIVE
- 34. SHAPER
- 37. CRANK & SLOTTED LINK MECHANISM
- 42. Drilling And Drills Types of drills – Twist drill: most common drill – Step drill: produces holes of two or more different diameters – Core drill: used to make an existing hole bigger
- 43. Operations in drilling machine
- 45. UP MILLING / DOWN MILLING
- 59. Top View Front View Tool Home 1.) X & Y Rapid To Hole Position
- 60. Top View Front View 2.) Z Axis Rapid Move Just Above Hole 3.) Turn On Coolant 4.) Turn On Spindle .100”
- 61. Top View Front View 5.) Z Axis Feed Move to Drill Hole
- 62. Top View Front View 6.) Rapid Z Axis Move Out Of Hole
- 63. Top View Front View 9.) X&Y Axis Rapid Move Home 7.) Turn Off Spindle 8.) Turn Off Coolant
- 64. Top View Front View Tool At Home O0001 N005 G54 G90 S600 M03 N010 G00 X1.0 Y1.0 N015 G43 H01 Z.1 M08 N020 G01 Z-.75 F3.5 N030 G91 G28 X0 Y0 Z0 N035 M30 N025 G00 Z.1 M09 Here’s The CNC Program!
- 65. Top View Front View Tool At Home O0001 O0001 Number Assigned to this program
- 66. Top View Front View Tool At Home O0001 N005 G54 G90 S600 M03 N005 Sequence Number G54 Fixture Offset G90 Absolute Programming Mode S600 Spindle Speed set to 600 RPM M03 Spindle on in a Clockwise Direction
- 67. Top View Front View O0001 N005 G54 G90 S600 M03 N010 G00 X1.0 Y1.0 G00 Rapid Motion X1.0 X Coordinate 1.0 in. from Zero Y1.0 Y Coordinate 1.0 in. from Zero
- 68. Top View Front View O0001 N005 G54 G90 S600 M03 N010 G00 X1.0 Y1.0 N015 G43 H01 Z.1 M08 G43 Tool Length Compensation H01 Specifies Tool length compensation Z.1 Z Coordinate .1 in. from Zero M08 Flood Coolant On
- 69. Top View Front View O0001 N005 G54 G90 S600 M03 N010 G00 X1.0 Y1.0 N015 G43 H01 Z.1 M08 N020 G01 Z-.75 F3.5 G01 Straight Line Cutting Motion Z-.75 Z Coordinate -.75 in. from Zero F3.5 Feed Rate set to 3.5 in./min.
- 70. Top View Front View O0001 N005 G54 G90 S600 M03 N010 G00 X1.0 Y1.0 N015 G43 H01 Z.1 M08 N020 G01 Z-.75 F3.5 G00 Rapid Motion Z.1 Z Coordinate .1 in. from Zero M09 Coolant Off N025 G00 Z.1 M09
- 71. Top View Front View O0001 N005 G54 G90 S600 M03 N010 G00 X1.0 Y1.0 N015 G43 H01 Z.1 M08 N020 G01 Z-.75 F3.5 N030 G91 G28 X0 Y0 Z0 G91 Incremental Programming Mode G28 Zero Return Command X0, Y0, Z0 X,Y,& Z Coordinates at Zero N025 G00 Z.1 M09
- 72. Top View Front View O0001 N005 G54 G90 S600 M03 N010 G00 X1.0 Y1.0 N015 G43 H01 Z.1 M08 N020 G01 Z-.75 F3.5 N035 M30 N030 G91 G28 X0 Y0 Z0 N025 G00 Z.1 M09 M30 End of Program
- 75. Abrasive Jet MachiningAbrasive Jet Machining Fig : Schematic illustration of Abrasive Jet Machining
- 83. Schematic of an Electric Discharge Machining (EDM)
Editor's Notes
- In this case, we are using a simple analogy to stress how a programmer must be able to visualize a CNC program’s execution. We first look at how a machinist would machine a hole in a work piece held in a vise on a milling machine. Then we’ll show how the same operation will be performed with a CNC program. The machinist standing in front of the milling machine has everything they need right in front of them. They wouldn’t forget something as simple as turning the spindle on before trying to drill the hole. On the other hand, a CNC programmer must typically work with nothing more than a blueprint, a pencil, a calculator, and a blank piece of paper. They must be able to visualize every motion and function of the program’s execution in their minds.
- Here is the same operation (drilling a hole) performed by a CNC program. Each step will be explained.