Bending - Course: Technique of Working Sheet Metals, Pipes and Sections. Instruction Examples for Practical Vocational Training: Instruction Example 14.6.: Beaker

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 flanging of sheet metal and fabricating a bottom seam joint

Figure

Material

Beaker jacket as to Instruction Example 2.5.

Tools

Steel scriber, smooth file 200 mm (flat), machinist's hammer, hand-type hacksaw

Measuring and testing means

Steel rule

Auxiliary means

Vise, cylindric striking support f 69 mm, ferrule

Previous knowledge required

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

Sequence of operations	Comments
1. Prepare the working place and make available the working material.	Check completeness.
2. Clamp beaker jacket of Instruction Example 2.5. and shorten seam on one side.	Stage (1)
3. Fabricate outside flanging.	Stage (2)
	Start and finish flanging on anvil.
4. Check diameter 80 mm of bottom sheet	Stage (3)
	Rework, if need be.
5. Scribe bottom sheet for flanging, tightly clamp on cylindric striking support and flange edge.	Stage 4
	Insert ferrule and striking support f 69 mm.
6. Put bottom sheet on beaker (flanged side).	Stage 5
7. Joint bottom sheet and beaker by bottom seam.	Stage 6
	First, fold short bottom sheet piece, then clamp it under the jacket seam and finish folding.
8. Check bottom seam.	Shape.

Beaker