|Manual Sawing - Course: Technique for Manual Working of Materials. Instruction Examples for Practical Vocational Training|
The present material contains 7 selected instruction examples which are intended to help practising the main techniques of manual sawing with increasing level of difficulties. This includes straight, angular and parallel cuts - from simple cutting-off of flat and cylindrical parts as well as of various sections up to the manufacture of complex parts.
In order to facilitate the preparation and execution of the work, the necessary materials, measuring and testing tools, hand tools and accessories are stated for each training example. Moreover, knowledge required in addition to knowledge of manual sawing is mentioned.
The sequence of operations given for each instruction example includes the necessary steps for the production of the relevant workpiece.
For each instruction example a working drawing is attached showing the required shapes and dimensions of the workpiece.
All workpieces produced may be used in the workshop for practical purposes.
Spacers and Vee-shaped attachments are required for various vice work; pin drifts of nonferrous metals (copper and brass) are necessary accessories for pinning and drifting work; steel squares may be used by the trainees as testing tools.
Angle-steel frames with inserted steel or wooden plates and provided with supports are suitable tables for storing purposes.
Wall-shelf brackets are necessary supporting elements for the manufacture of wall shelves for the workshop.
Explanation to the specification of material:
Steel is specified according to the value of its tensile strength in the unit Megapascal (MPa).