Work cutting apparatus and work cutting method

A work cutting apparatus for cutting a work, comprising:

• a cutting blade having a surface containing a super hard abrasive grain dispersed entirely therein;
• first driving means for rotation of the cutting blade;
• second driving means for moving at least one of the cutting blade and the work in a direction in which movement of the cutting blade relative to the work at a time of cutting is vertical to the work;
• and
• vibrating means for vibrating the work in a direction parallel to a main surface of the cutting blade.

A work cutting apparatus for cutting a work, comprising:

• a cutting blade having a surface containing a super hard abrasive grain dispersed entirely therein;
• first driving means for rotation of the cutting blade;
• second driving means for moving at least one of the cutting blade and the work in a direction in which movement of the cutting blade relative to the work at a time of cutting is along a normal line passing a tangential point between the cutting blade and the work, and
• vibrating means for vibrating the work in a direction parallel to a main surface of the cutting blade.

A work cutting apparatus for cutting a work, comprising:

• a container holding a coolant for submerging the work,
• a cutting blade having a surface containing a super hard abrasive grain dispersed entirely therein;
• first driving means for rotation of the cutting blade;
• second driving means for moving at least one of the cutting blade and the work for cutting the work submerged in the coolant;
• and
• vibrating means for vibrating the work in a direction parallel to a main surface of the cutting blade.

A work cutting method for cutting a work, comprising:

• a first step of preparing a cutting blade having a surface containing a super hard abrasive grain dispersed entirely therein;
• and
• a second step of cutting the work with the cutting blade by rotating the cutting blade and moving at least one of the cutting blade and the work in a direction in which movement of the cutting blade relative to the work is vertical to the work,
• wherein the work is cut while being vibrated in a direction parallel to a main surface of the cutting blade in the second step.

A work cutting method for cutting a work, comprising:

• a first step of preparing a cutting blade having a surface containing a super hard abrasive grain dispersed entirely therein;
• and
• a second step of cutting the work with the cutting blade by rotating the cutting blade and moving at least one of the cutting blade and the work in a direction in which movement of the cutting blade relative to the work is along a normal line passing a tangential point between the cutting blade and the work,
• wherein the work is cut while being vibrated in a direction parallel to a main surface of the cutting blade in the second step.

A work cutting method for cutting a work, comprising:

• a first step of preparing a cutting blade having a surface containing a super hard abrasive grain dispersed entirely therein;
• and
• a second step of cutting the work submerged in a coolant with the cutting blade by rotating the cutting blade and moving at least one of the cutting blade and the work,
• wherein the work is cut while being vibrated in a direction parallel to a main surface of the cutting blade in the second step.