Final exam Flashcards
What is a ripping cut?
A ripping cut refers to cutting the wood along its grain for a lengthwise cut.
When rip-cutting stock on the table saw, what three things should be considered to make a smooth cut?
1) A flat face should be laid against the table.
2) A straight edge should be against the fence.
3) A splitter should be used to prevent material from pinching the blade.
What is cross-cutting?
Cross-cutting refers to cutting across the grain.
When cross-cutting on the table saw, what safety rule should be considered?
The measurement on the fence must be greater than the measurement between the blade and the fence.
When using a table saw, which side is most affected by tear-out?
The bottom side.
What is double-fencing on the table saw?
Double-fencing occurs when your workpiece is pressed on the edge and side, causing your cut material to lock along the fence and potentially causing the saw blade to kick the materialback.
If you had to cut many 4-inch long pieces from a long strip of material 1” wide by 1” thick by 60” long using the table saw, describe how it could be done safely, accurately, and quickly.
What would be a good alternative machine for this cutting procedure?
One way would be to use fence shims, for it prevents the hazards of double-fencing, and allows the operator to make multiple cuts that will be the same length.
A radial arm saw could be used to cut multiple lengths of long thin stock; additionally, a stop block could be added to speed up the cutting process.
When using a Jointer, what causes ripple effects on the stock?
Ripple effects could be caused by excessive feed rates or misaligned knives.
On a jointer, where are the knives pointed?
The knives are pointed toward the in-feed table.
When feeding stock in a jointer, what sides of the grain should it be fed through?
Always feed stock downhill on the grain; if the grain structure flows many ways, feed the stock in the direction where most of the grain is directed.
What should be used if stock is lower than the fence on the jointer?
Push sticks.
What should be done to keep stock at its maximum finished thickness when using the jointer?
Adjust the depth of the cut to remove minimal material.
When using the jointer, is it ok to put your hand directly over the cutter?
No! Even though the workpiece covers the cutter, it still could potentially kick back or slip out.
When using a jointer, what should be considered when trying to keep stock as thick as possible?
Have a rough cut when using the jointer; in other words, do not cut stock to exact length prior to using the jointer. Additionally, adjust the depth of cut to remove minimal material (1/16”).
Give two reasons why a planer needs a flat face on the stock prior to machining.
1) if the lower face is not flat, the feed roller pressure will deform the stock
2) Stock could potentially jam up inside the planer.
