20 sharpening tools
TRANSCRIPT
WOOD MATERIALS TECHNOLOGY
4th Edition
Chapter 20Sharpening Tools
Sharpening − chisels/planes Procedure
Grinding
Sharpening/honing
Backing off (remove the burr)
Grinding
Sharpening
When to grind?
You grind the blade when It has worn down It has been damaged It has been rounded over by
incorrect sharpening
Sharpening process
− Sharpening stones
Sharpening angles
Grinding angle– 25 degrees
Sharpening angle– 30 degrees
Sharpening − saws
ProcessHold saw in the vice and
file the teeth levelThe teeth are reshaped
to a fine point using a triangular file
Every second tooth must be bent (set) to the side using a saw set
Quiz
Name the piece of sharpening equipment in the pictures below
− Slipstone − Oilstone/honing stone
Grinding angle
Sharpening angle
25°30°
25° 30°
What are the correct angles associated with sharpening the blade of a plane?
Name this tool and describe why it is important
Sawset– The sawset bends every second tooth of a saw to one side – This ensures that when the saw cuts a piece, the blade does not get
stuck in the groove or kerf
Oil is used to keep the stone lubricated and to stop the stone getting clogged
What is used to lubricate this sharpening stone?