C3 - LT #3 - Use sanding machines Flashcards
What is a belt sander used for?
Final sanding of straight stock
Which is better for sanding * INTERNAL * curves, the belt sander or the disk sander?
Belt sander
Which is considered a finishing sand: The belt sander or the disk sander?
Belt Sander
Which sanding machine would you choose to true the edges of a circle cut from wood?
Disk sander
Which sander is best at removing stock from end grain?
Disk sander & mitre gauge
Describe the function of each roller on a belt sander
1) One provides power to the belt,
2) the other keeps the belt tracking properly, both must be lightly crowned
Describe the function of a platen on a belt sander
a smooth metal plate that holds the sanding belt against the work and thus ensures a flat sanded surface
Kickback can be caused by a sanding belt that is
TORN or RIPPED
When sanding long stock on a belt sander, the stuck must be kept mid-point of the _________?
platen
When you change a sanding belt, describe how you should install the belt so that it travels in the right direction
The arrow on the rear of the belt indicate the direction of travel
Describe what may be indicated if wear spots show on the platen of a belt sander
dust accumulation
How is the tracking of a belt sander adjusted? What is the cause if tracking can’t be adjusted or won’t stay in adjustment
Tracking adjustment that tilts the roller slightly one way or the other. This tilting action allows the belt to ride in the middle of the rollers properly.
Or
Dust accumulation
If several pieces of stock require edge sanding on a belt sander, you should periodically relocate:
the stock back and forth along the face
Describe two advantages of open-coat sandpaper
MORE flexible less clog
hat advantage does closed-coat sandpaper have over the open-coat type?
Longer life
What grit sizes are used to remove machining marks from wood?
60, 80, 100
A final sanding of wood that will be painted with grit can be as coarse as
100 grit
Describe how to prevent sandpaper and the workpiece from becoming overheated when using a sanding machine
Constant moving of work piece
A disk sander has a table that is the full width of the disk. Describe which half of the disk is used for sanding:
The half of the disk that travels downward to the table or fence
Sandpaper on a sanding machine should travel
AGAINST the grain
Is the rate of stock removal always the same, regardless of the location of the work n a disk sander? Explain.
Sandpaper travels faster at the edge of the disk than at the center. Burning, etc, more at the edge of the disk.
Roughed-out shapes for disk sanding should leave no more than ______ of waste to remove
1-2 MM
What system must always be turned on prior to using any sanding machine?
Dust extracting
What is used to clear away debris from a sanding machine?
A brush
Wide belt sander is mainly used for what?
Furniture, cabinet and door manufacturing
What is a drum sander similar to?
A thickness planer, with sanders instead of knives
How to accurately sand with a disk sander?
Use of a table and miter gauge
What is the vertical oscillating spindle sander great for?
Ideal for sanding inside of curves
The most common abrasives for the belt, drum, disk, and spindle sanders include:
1) alum. oxide
2) silicon carbide
3) ceramic
4) alumina zirconia
What is the most commonly used sanding belt today?
Aluminum oxide
