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Grinding of bearing knowledge: success secrets of wheel dressing

Can enhance the grinding wheel grinding performance the key aspect is most greatly the good reshaping and repairs sharp (generic term to repair and maintain) the tool and the skilled conditioning skill.In fact, has the high grade conditioning tool and the skilled grasping truing of grinding wheel skill operator, can maintain the grinding wheel to have the high grinding performance throughout.But only depends upon the purchase so-called good grinding wheel.This point is extremely important, because the workshop cannot operate according to each person the situation, provides the special grinding wheel.
  
Will repair sharply is will surpass the hard abrasive grinding wheel the abrasive sharpening sharp treating processes.In this process, must remove the abrasive the cement and rubs the obtuse grinding wheel abrasive, enable to have outside the very strong grinding performance grinding wheel abrasive prominent cement, forms the sharp cutting edge.Repairs sharply also must from in the grinding wheel surface blowhole, removes the small material, prevented the function increases on the grinding wheel grinding strength, on the grinding wheel grinding strength increases, will be able to cause vibrates and creates the components surface burn.
  
Suitable has not repaired sharply, even if is the best grinding wheel not impossible to obtain processes the components high grade and the size uniformity.In fact, when you have invested the high grade grinding wheel, in order to obtain the high grinding performance, repairs and maintains them to appear well extremely importantly.
  
The reshaping may say is a grinding wheel preparatory work part, it repairs sharply with the ordinary grinding wheel also carries on.Regarding the ultra hard grinding compound grinding wheel, two working procedures are carry on separately, first carries on the reshaping to the grinding wheel.In uses in the ultra hard grinding compound grinding wheel grinding, the reshaping is uses the reshaping tool or the hoop carries on, repairs sharply is frequently uses ceramic cement the conditioning stick, completes after the reshaping, carries on to the grinding wheel repairs sharp processing.
  
In the grinding wheel including the reshaping with repairs before the sharp conditioning, guaranteed the main shaft bearing under certain temperature (for example usual grinding wheel grinding condition) is very important.This may avoid damaging the components geometry shape as well as the grinding wheel and repairs and maintains the tool the unusual attrition.The tool uses which regarding the conditioning must process carefully, but because it by the nature hard, wear-resisting the very crisp diamond material is made generally, because also to collides slightly, the stress causes the small crack and stave extremely is all sensitive.
  
Because diamond shaper itself is a cutting tool, must maintain extremely sharply.Used one to rub the obtuse conditioning tool truing of grinding wheel surface, could cause the grinding wheel failure.In order to maintain one high grade and the sharp diamond conditioning tool, once in a while, needs the 1/8 circle revolving simple point or the belt awl point conditioning tool.The revolving number of times may decide according to the conditioning situation that, according to the experience, least revolves every day one time.Regarding the chisel and the formation conditioning tool, must rub obtusely generally in them front 180° revolves one time.
  
The majority cylindrical grinder is puts in the components and the grinding wheel in a level line.The components outer annulus peak and the grinding wheel outer annulus peak is called the components/The grinding wheel contact point, the diamond conditioning tool should as far as possible in the close components/Grinding wheel contact point truing of grinding wheel.Uses the grinding wheel regarding the internal grinder, diamond conditioning tool close grinding wheel outer annulus peak (i.e. when honing components/The grinding wheel contact point) carries on the conditioning, this point is more important.
  
Adopts the micro conditioning
  
In order to reduce the conditioning time, probably always has one kind to want to choose big to repair eliminates the depth the enticement.This is one extremely wrong idea.Must choose appropriately repairs eliminates the depth to carry on the conditioning to the grinding wheel.The choice too big repairs eliminates the depth, can have the high cutting temperature, reduces the finisher the service life, but also can the useful grinding wheel level excision.The final outcome is causes the finisher and the grinding wheel both damage, works just the opposite.
  
The best conditioning quantity for passes through several times repairs except after, both can restore the grinding wheel the geometry shape, and can just produce the good grinding cutting edge is the criterion.
  
The use simple point conditioning tool, should contact the grinding wheel by the 10-15o axis core angle of bank the diameter direction.Will like this cause the simple point conditioning tool when the regular rotation, has function which will sharpen.Does not need to incline this angle by the multi-spot contact conditioning tool.Changes with repairs and maintains the tool entire end surface and the grinding wheel surface contact.




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