Bending - Course: Technique of Working Sheet Metals, Pipes and Sections. Instruction Examples for Practical Vocational Training: Instruction Example 14.5.: Beaker Jacket

Bending - Course: Technique of Working Sheet Metals, Pipes and Sections. Instruction Examples for Practical Vocational Training

		(introduction...)
		Preliminary Remarks
		Instruction Example 14.1.: Mounting Angle
		Instruction Example 14.2.: Half-round Bracket
		Instruction Example 14.3.: Hasp
		Instruction Example 14.4.: Double Pipe Knee
		Instruction Example 14.5.: Beaker Jacket
		Instruction Example 14.6.: Beaker

Practise the folding, turning over and rounding of sheet metal and fabricating a jacket seam joint.

Figure

Material

Tools

Steel scriber, smooth file 200 mm (flat), light metal hammer, machinist's hammer, folding bench

Measuring and testing means

Steel rule

Auxiliary means

Vise, intermediate plate 1 mm, bending mandrel f 60 mm

Previous knowledge required

Manual material working: Measuring, testing, scribing, hammering, filing

Sequence of operations	Comments
1. Prepare the working place and make available the working material.	Check completeness.
2. Check initial size, deburr and straighten.	Re-work, if need be.
3. Scribe seam width and fold seam on folding bench.	Stages (1) and (2)
4. Turn over the seam with intermediate plate inserted.	Stage (3)
	Insert intermediate plate of 1 mm
5. Gradually round sheet on vise around the bending mandrel.	Stage (4)
	Insert bending mandrel of f 60 mm
6. Hook in the seam without bending mandrel.	Stage (5)
Press the seam together and upset it on the bending mandrel.	Press together with hammer face.
	Upset with hammer pane.
7. Check rounding and jacket seam.

Beaker jacket