PR331

 

PRODUCTION DRAWING AND COST ESTIMATION

Conventional Representation of Machine elements - International Standards (ISD) and Indian Standards (IS)

Limits and Fits - IT system of tolerances, deviations and fits

Geometric Dimensioning and Representation - Tolerancing, Tolerancing of form , orientation , location and run-outs , Datums and Datum Systems.

Surface texture indication on drawing. Welds - Symbolic representing of drawings. Preparation of process - Chart for a given component.

Cost Estimation of setting time and machining time - estimation of material cost, labour cost and overhead cost based on supplied data. Given a sub-assembly /assembly to prepare production drawings of components as per current drawing office practice. At least ten sub-assemblies/assemblies are to be competed on A4 sheets.

Reference :

  1. Indian Standards : 10714,10715,10716,10717,10719, 813,919,2709,8000 , pt.1 to 4 : 10721, 11158 corresponding to ISO's

  2. PSG Design Data Book

  3. Sindeshwar ,NMachine Drawing " Tata McGraw Hill , 1985

  4. Hariprasad, Mechanical Estimating and (costing, Khartna Publishers.