A device for grinding pre-milled and hard metal-tipped teeth of saw bands, is provided. The device comprises a feed device for feeding a temporary workpiece in a timed manner, wherein the temporary workpiece is formed from a plurality of saw bands which are parallel to one another. The device further comprises a clamping device which clamps the plurality of saw bands against one another, and a grinding unit for simultaneously grinding a plurality of teeth. The grinding unit comprises a grinding wheel with a plurality of grinding profiles. A corresponding method is also provided, where the grinding unit grinds both the tooth backs and the tooth faces to final dimension in exactly one infeed movement.

A parting/grooving insert and a method of grinding a parting/grooving insert including rotating a plane grinding surface having a normal vector parallel to the axis of rotation and a tangential direction of rotation; providing a parting/grooving insert including a rake surface, a main clearance surface, and a main cutting edge formed between the rake and main clearance surfaces; orienting/positioning the insert relative to the grinding surface, such that the main clearance surface is parallel to the grinding surface, the normal vector of the main cutting edge being in the plane of the main clearance surface and with a vector component in the direction of rotation forming an angle to the tangential direction of rotation at the insert of at least 20 degrees from parallel orientation; and grinding the main clearance surface to provide grinding marks having an angle to the normal vector of the main cutting edge corresponding to the angle to the tangential direction of rotation.

A parting/grooving insert and a method of grinding a parting/grooving insert including rotating a plane grinding surface having a normal vector parallel to the axis of rotation and a tangential direction of rotation; providing a parting/grooving insert including a rake surface, a main clearance surface, and a main cutting edge formed between the rake and main clearance surfaces; orienting/positioning the insert relative to the grinding surface, such that the main clearance surface is parallel to the grinding surface, the normal vector of the main cutting edge being in the plane of the main clearance surface and with a vector component in the direction of rotation forming an angle to the tangential direction of rotation at the insert of at least 20 degrees from parallel orientation; and grinding the main clearance surface to provide grinding marks having an angle to the normal vector of the main cutting edge corresponding to the angle to the tangential direction of rotation.

A sample preparation saw has a base, a housing, a saw assembly mounted to the base, a dressing assembly, a sample clamping assembly mounted to the base, and a reservoir assembly. The saw assembly includes a blade assembly with a rotating blade. The blade assembly is movable along x-, y- and z-axes by at least two drives. The dressing assembly is operable to dress the rotating blade. The sample clamping assembly includes a rail, a sample mount removably positioned on the rail and a saddle operable to hold a sample. The reservoir assembly is operable to recirculate a rinse fluid sprayed on the rotating blade, and includes a basin having a pump and a series of weirs.

Methods of grinding a sawblade include providing a sawblade plate; fabricating a plurality of sawblade teeth in the sawblade plate, each of the plurality of sawblade teeth having a pair of opposite tooth surfaces, a tooth back, a tooth gullet, a tooth face extending generally from the tooth back to the tooth gullet and a tooth edge on the tooth face; forming at least one blade relief in at least one of the opposite tooth surfaces of each of the plurality of sawblade teeth at the tooth face generally between the tooth edge and the tooth gullet; grinding the tooth edge of each of the plurality of sawblade teeth by rotation and movement of a grinding wheel along and against the tooth edge generally from the tooth back to the blade relief; and terminating the movement of the grinding wheel at the blade relief.

Methods of grinding a sawblade include providing a sawblade plate; fabricating a plurality of sawblade teeth in the sawblade plate, each of the plurality of sawblade teeth having a pair of opposite tooth surfaces, a tooth back, a tooth gullet, a tooth face extending generally from the tooth back to the tooth gullet and a tooth edge on the tooth face; forming at least one blade relief in at least one of the opposite tooth surfaces of each of the plurality of sawblade teeth at the tooth face generally between the tooth edge and the tooth gullet; grinding the tooth edge of each of the plurality of sawblade teeth by rotation and movement of a grinding wheel along and against the tooth edge generally from the tooth back to the blade relief; and terminating the movement of the grinding wheel at the blade relief.

Blade stop devices for stopping a sawblade at a predetermined stopping point relative to a grinding disk on a grinding tool of a sawblade grinding machine include a device mount frame configured for mounting with respect to the grinding disk on the grinding tool of the sawblade grinding machine. A carriage rail may be provided on the device mount frame. A blade stop carriage may be adjustable along the carriage rail between a home position and a blade stop position. A blade stop arm may include an arm base carried by the blade stop carriage and a blade stop flange carried by the arm base. Methods of stopping a sawblade at a predetermined stopping point relative to a grinding disk on a grinding tool of a sawblade grinding machine to facilitate consistent removal of a desired quantity or thickness of material from blade teeth on different sawblades are also disclosed.

Blade stop devices for stopping a sawblade at a predetermined stopping point relative to a grinding disk on a grinding tool of a sawblade grinding machine include a device mount frame configured for mounting with respect to the grinding disk on the grinding tool of the sawblade grinding machine. A carriage rail may be provided on the device mount frame. A blade stop carriage may be adjustable along the carriage rail between a home position and a blade stop position. A blade stop arm may include an arm base carried by the blade stop carriage and a blade stop flange carried by the arm base. Methods of stopping a sawblade at a predetermined stopping point relative to a grinding disk on a grinding tool of a sawblade grinding machine to facilitate consistent removal of a desired quantity or thickness of material from blade teeth on different sawblades are also disclosed.

A sample preparation saw (10) has a base (130, 146, 14, 47), a housing (12, 76), a saw (10) assembly (30, 58) mounted to the base (130, 146, 14, 47), a dressing assembly (58), a sample clamping assembly (100) mounted to the base (130, 146, 14, 47), and a reservoir assembly (30, 58). The saw (10) assembly (30, 58) includes a blade assembly (30) with a rotating blade (24). The blade assembly (30) is movable along x-, y- and z-axes by at least two drives (27, 36). The dressing assembly (58) is operable to dress the rotating blade (24). The sample clamping assembly (100) includes a rail (102), a sample mount (104) removably positioned on the rail (102) and a saddle (106) operable to hold a sample. The reservoir assembly (30, 58) is operable to recirculate a rinse fluid sprayed on the rotating blade (24), and includes a basin (178) having a pump (180) and a series of weirs (188A, 188).

A parting/grooving insert and a method of grinding a parting/grooving insert including rotating a plane grinding surface having a normal vector parallel to the axis of rotation and a tangential direction of rotation; providing a parting/grooving insert including a rake surface, a main clearance surface, and a main cutting edge formed between the rake and main clearance surfaces; orienting/positioning the insert relative to the grinding surface, such that the main clearance surface is parallel to the grinding surface, the normal vector of the main cutting edge being in the plane of the main clearance surface and with a vector component in the direction of rotation forming an angle to the tangential direction of rotation at the insert of at least 20 degrees from parallel orientation; and grinding the main clearance surface to provide grinding marks having an angle to the normal vector of the main cutting edge corresponding to the angle to the tangential direction of rotation.