Thermal control system liquid cooled closed loop chiller to 6.2 for work spindle maintain temperature within ± 0.1° C 50 to 5,000 rpm or more, 6.3 Speed Range 6.4 Swing Capacity 700mm diameter Working Load Capacity ≥ 85 Kg 6.5 (Radial) 6.6 Axial Stiffness ≥ 228 N/μm Radial Stiffness (at ≥ 98 N/μm 6.7 spindle nose) 6.8 Drive System Brushless motor 6.9 Motion Accuracy Axial/Radial: ≤ 50 nm CAM software package: It should generate part program for machining of 2D and 3D optical surfaces using X, Z, C, B machine axes. It shall have provision for corrective feedback functionality. 7 Software This software shall also support CNC programming for aspheric, diffractive and freeform surfaces and shall have provision for various inputs like importing of CAD files (STEP and IGES). Balancing system ( both hardware and Work piece Balancing software) for balancing of work 8 system spindle, mounting fixture and work piece Floor standing system with flexible machine attachment. It shall be Air Temperature Control 9 attached to machine enclosure. It System shall maintains air temperature to ± 0.1 °C
6.2 Thermal control system for work spindle liquid cooled closed loop chiller to maintain temperature within ± 0.1° C 6.3 Speed Range 50 to 5,000 rpm or more, 6.4 Swing Capacity 700mm diameter 6.5 Working Load Capacity (Radial) ≥ 85 Kg 6.6 Axial Stiffness ≥ 228 N/μm 6.7 Radial Stiffness (at spindle nose) ≥ 98 N/μm 6.8 Drive System Brushless motor 6.9 Motion Accuracy Axial/Radial: ≤ 50 nm 7 Software CAM software package: It should generate part program for machining of 2D and 3D optical surfaces using X, Z, C, B machine axes. It shall have provision for corrective feedback functionality. This software shall also support CNC programming for aspheric, diffractive and freeform surfaces and shall have provision for various inputs like importing of CAD files (STEP and IGES). 8 Work piece Balancing system Balancing system ( both hardware and software) for balancing of work spindle, mounting fixture and work piece 9 Air Temperature Control System Floor standing system with flexible machine attachment. It shall be attached to machine enclosure. It shall maintains air temperature to ± 0.1 °C
IDT00276900000000000isro05401.docx