: The revised editions bridge the gap between old-world iron and new-age silicon, introducing Numerical Control (NC) Industrial Robotics The Legacy of the Authors The text is a collaborative effort of S.K. Hajra Choudhury A.K. Hajra Choudhury Nirjhar Roy
: The "Mother of all Machine Tools," where the book explains the geometry of cutting tools—the back rake and side rake angles that determine how a chip of metal curls away from the workpiece. Drilling and Milling Hajra Choudhary Workshop Technology Vol 2 Pdf Free
| | Chapters | Key Topics | |-------------|--------------|----------------| | I – Machine Tools | 1 to 6 | Lathe, Capstan & Turret lathes, Shaper, Planer, Slotter, Drilling, Boring, Milling, Grinding | | II – Metal Cutting | 7 to 9 | Cutting tools, Tool materials (HSS, carbides, ceramics), Tool wear, Machinability | | III – Jigs & Fixtures | 10 | 3-2-1 location principle, Drill jigs, Milling fixtures | | IV – Modern Processes | 11 to 13 | ECM, EDM, LBM, USM, Chemical milling, Plasma arc cutting | | V – Metrology | 14 to 16 | Calibration, Surface roughness, Gauges (plug, ring, snap), Comparator | | VI – Special Topics | 17 & 18 | Powder metallurgy, Non-destructive testing (NDT) – X-ray, ultrasonic, dye penetrant | : The revised editions bridge the gap between