Making the Detail Drawings of Parts From Sketches

Unlike sketches the detail drawingsof parts are done in a scale with the exact observance of sizes with the help of drawings instruments.

To make the detail drawingsit is necessary:

· to analyze preliminary the sketch of a part, in accordance with State Standard 2.302-68 choose the scale of a view and a drawing format;

· to draw a frame and title block on a format;

· to make the final chart of arrangement of drawing, i.e. to mark the places of basic and additional depictions;

· to draw the axes of symmetry, central lines, to draw the contours of depictions, to draw sectional views, sections, to draw extension and dimension lines;

· to check up the drawing and remove unnecessary lines, to outline a visible contour by a continuous thick mainline, to hatch sectional views and sections;

· to mark sizes and signs of roughness of surface, to fill title block and technical requirements.

Example of the sketch of the part «Captive Nut» is shown in fig.6.5, and its detail drawing is shownin fig.6.6.

Figure.6.5 – The sketch of the part «Captive Nut»

Fig.6.6 – The detail drawing of the part «Captive Nut»

Дата добавления: 2014-10-15