Hammering and Marking - Course: Technique for Manual Working of Materials. Instruction Examples for Practical Vocational Training: Introduction

Hammering and Marking - Course: Technique for Manual Working of Materials. Instruction Examples for Practical Vocational Training

		(introduction...)
		Introduction
		Instruction example 3.1. Nameplate
		Instruction example 3.2. Number Plate for Locker
		Instruction example 3.3. Screw Driver
		Instruction example 3.4. Copper Bit of a Soldering Iron
		Instruction example 3.5. Bowl with Cover
		Instruction example 3.6. Table to determine Tapping Drill Holes and Bore Depths
		Instruction example 3.7. Table to determine Widths across Flats and Widths across Corners of Hexagonal-Head Screws

Introduction

The present material contains 7 selected instruction examples which are intended to help practising and consolidating knowledge and skills acquired in the working techniques “hammering and marking” with increasing level of difficulties in the working techniques of lengthening, widening, curving, chasing, flanging and marking.

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 hammering and marking is mentioned.

The sequence of operations given for each instruction example includes the necessary steps for the production of the workpiece.

For each instruction example a working drawing is attached showing the required shapes and dimensions of the workpiece.

The workpieces produced may be used by the trainees for personal purposes or in the workshop or production shop: the nameplate may be used by the trainee for identification of its personal tools or training pieces, the tables as an aid to determine values needed for the preparation of screwed joints, while the locker number plate, the soldering iron bit, the screw driver and the bowl may be used in the workshop.

Explanation to the specification of material:

The steel is specified according to the value of its tensile strength in the unit “Megapascal” (MPa).