MACHINING PROCESSES

 

Syllabus:

INTRODUCTION (05 Hours)
Introduction, classification, primary cutting motions, feed and auxiliary motion, gearing diagram, transmission ratio of drives.

TURNING (06 Hours)
Classification of turning machines, kinematic diagram of Engine lathe, capstan and turret , mechanisms,
operations, tools, tool angles, setting of machines for various jobs, special attachments , and accessories.

SURFACE MACHINING (06 Hours)
Principles, processes, kinematics diagram, mechanisms, cutting parameters, work holding methods, Tools and tool angles.

DRILLING AND BORING (06 Hours)
Classification, Kinematics diagrams, mechanisms, attachments, accessories, tools.

MILLING (08 Hours)
Classification, kinematics diagram of column and knee type milling machine, types of milling operations, holding of tool and work, cutters and angles, attachments.

ABBRASSIVE MACHINING (06 Hours)
Importance of finishing process, types of machines and operations, kinematics diagram, mechanisms,
dressing and trueing, blazing, loading, mounting and balancing , designating system & selection of grinding wheel.

BROACHING (03 Hours)
Purpose, processes, classification, attachments, tools.

GEAR CUTTING (05 Hours)
Gear milling, gear hobbing, gear finishing.

(Total Lecture Hours: 45 + Tutorial Hrs: 15)

PRACTICALS

1. Turning Practices for step and turning and machining time calculation.
2. Drilling Practices and machining time calculation.
3. Surface Machining practices (shagging) and time calculation
4. Milling Practices and machining time calculation.
5. Turning practices for thread cut ting and thread cutting calculation
6. Milling practices using inducing teachings.
7. Milling practices and spur gear cutting calculation
8. Milling practices for helical gear & calculation
9. Demonstration of Capstan & Single Automat spindle
10. Demonstration of cylindrical surface & tool and cutter grinders.

BOOKS RECOMMENDED

1. H.M.T, “Production Technology”, Tata McGraw Hill, 1980.
2. Bawa H.S., “Workshop Technology”, Tata McGraw Hill, 1995.
3. Hajra Choudhary S.K. and Hajra Choudhary A.K ., “Workshop Technology”, Media Promotors and
Publishers,1992.
4. Arora B.D., “Workshop Technology”, Satya Prakashan,1988.
5. Kalpakjain S. and Schmid Steven R., “Manufacturing Processes for Engineering Materials ”, Pearson
Publication, 2007.

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