Spanner manufacturing process by mazhar iqbal
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Transcript of Spanner manufacturing process by mazhar iqbal
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SPANNERPresented by: Mazhar Iqbal
In British English, spanner is the standard termIn American English, wrench.
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Types of Spanners
Ring spanner Combination spanner
Adjustable spanner Pipe Spanner
Alligator wrench Die wrench Chuck key
Allen wrench
Open end Spanner
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Drawing
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Drawing
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Material selection
Mild steel: (0.05–0.3% carbon)
Malleable and ductile
Low tensile strength
Light Weight
Price is relatively low
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Manufacturing Processes
Cutting
Milling
Drilling
Sawing
Grinding
Filing
Punching
These Manufacturing processes were used:
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Cutting
• By Abrasive Disc
• A rectangular(180×45) sheet was obtained
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Punching
After cutting the sheet of dimensions:(180mm×45mm×5mm)
The sheet was punched according to the drawing.
The use of coolant may erase the ink marks so I did punching.
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Milling
• Face milling
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Face milling
How Milling Was Done?
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Grinding
To remove the material from the edges
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Drilling
• Through holes
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Sawing
• Hack saw to remove material
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Surface Finishing
Grinding
Filing
Sand Paper(final)
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Grinding
Rough sheet was made smooth
Remove rusty surface(Hand Grinder)
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Filing SQUARE FILE:
fits into corners well.
HALF ROUND FILE: for curved surfaces
Round File:Very narrow curved surfaces
Precaution:
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Filing
Finishing
Dimensional accuracy(mainly square)
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Punching
Spanner Jaw Sizes (Numeric punch)
Name (Letter Stamps)
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Final Product
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Cutting
Milling
Grinding Drilling
Sawing
Grinding Filing
Punching
Process Summary
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Problems
Material problem(Rusty scrap)
The Letter stamp was smaller than Numeric Punch.
Filing(not as smooth as required for finishing)
22
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References
• http://en.wikipedia.org/w/index.php?title=Punch_%28tool%29&action=edit§ion=10
• http://www.technologystudent.com
• http://www.sat.dundee.ac.uk/~psc/spanner_jaw.html
• http://en.wikipedia.org/wiki/Carbon_steel#Mild_and_low-carbon_steel
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Thank You