PR331

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 or assembly, to prepare production drawings of components as per current drawing office practice. At least ten sub-assemblies or assemblies are to be completed on A4 sheets.

References :

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 ,Machine Drawing Tata McGraw Hill , 1985 4. Hariprasad, Mechanical Estimating and costing, Khartna Publishers.