Carbide Processors, Inc
World's Best Brazed Tools

(Plus parts, supplies and technology to build them)

 

 

Quality Specifications for Carbide Saw Tips

 

Counts

Text Box: Internal cracks prohibited

 

1.  All counts will be – zero to +2 parts per 250.

 

 

Size

1.  -0 / + .007” is industry standard.

2.  -0 / +.004” is current practice.

Text Box: We used 30x  magnification for inspection with standard light.    The gap on the right side of this tip is about 0.003”.  On the left side the gap goes up to about 0.007” with the largest chip about 0.003”  

 

Chips and cracks

 

1.  Chips no more than one half the grinding

tolerance. 

2.  Chips no more than 0.003” in any dimension.

3.   No internal or external cracks.

 

Edge radius, chips and parallelism

When the part is held next to a straight

edge the maximum gap will be no more

than 0.007” to account for the total of edge

radius, chips and parallelism. 

 

Wettability -

1.       A small piece of silver solder (app. 1/5 the length of

the surface will flow completely and evenly out to all

four corners. 

2.       A piece of silver solder 2/3 as long as the tip surface

will flow out evenly to all four corners and will create a

smooth, consistent hump. 

 

Pretinning

Even flow to all four corners.

Average pretinned silver depth is 0.007” to 0.010”.

 

Bond Strength

The tip will braze to the steel plate so that the carbide will break

or the steel will rip but the tip will not come off.   These two

pictures show tips where the surface treatment peeled off.   

 

 

 

 

Grades

Each grade will be specified and defined by grain size, chemistry, transverse rupture strength and hardness, preferably Rockwell hardness.

Chemistry

Each batch will have available a chemical analysis if requested. 

 

Delivery - As promised.