A blade assembly is formed from multiple blades assembled adjacent each other with openings in respective blades arranged to form a passageway passing through adjacent blades.

The invention relates to a method for cutting refractory metals, in which a solid body (1) made of a refractory metal is mechanically machining cut with a cutting apparatus (4, 7), wherein the cutting apparatus (4, 7) is wetted for cutting with a fluid (6) having at least 50 weight % water, wherein the cutting apparatus (4, 7) is brought to a positive electrical potential in relation to the solid body (1) during cutting. The invention also relates to a disc produced from a refractory metal using such a method, and such a disc that has an oxide layer with a thickness of between 2 nm and 1,000 nm on the cutting surface.

The invention relates to a method for cutting refractory metals, in which a solid body (1) made of a refractory metal is mechanically machining cut with a cutting apparatus (4, 7), wherein the cutting apparatus (4, 7) is wetted for cutting with a fluid (6) having at least 50 weight % water, wherein the cutting apparatus (4, 7) is brought to a positive electrical potential in relation to the solid body (1) during cutting. The invention also relates to a disc produced from a refractory metal using such a method, and such a disc that has an oxide layer with a thickness of between 2 nm and 1,000 nm on the cutting surface.

The present invention aims at eliminating a need for a moving mechanism that moves a machining table and eliminating a need for a protective cover such as a bellows cover, and includes a machining table that holds a workpiece, a machining mechanism that machines the workpiece with a rotary tool while using a machining liquid, and a moving mechanism that linearly moves the machining mechanism at least in each of X and Y directions on a horizontal plane, in which the machining mechanism moved by the moving mechanism machines the workpiece with respect to the machining table, the machining table being fixed at least in the X and Y directions.

The present invention aims at eliminating a need for a moving mechanism that moves a machining table and eliminating a need for a protective cover such as a bellows cover, and includes a machining table that holds a workpiece, a machining mechanism that machines the workpiece with a rotary tool while using a machining liquid, and a moving mechanism that linearly moves the machining mechanism at least in each of X and Y directions on a horizontal plane, in which the machining mechanism moved by the moving mechanism machines the workpiece with respect to the machining table, the machining table being fixed at least in the X and Y directions.

A sawblade for a circular saw, including a round, disk-shaped core blade made from one or more parts, with a plurality of circumferentially distributed saw teeth being arranged at its external perimeter and with its center comprising a connection for fastening the sawblade at a driveshaft, and at least one side area of the core blade including open channels 7 for guiding liquids. A circular sawing machine having such a sawblade and a method for producing such a sawblade are also provided.

A sawblade for a circular saw, including a round, disk-shaped core blade made from one or more parts, with a plurality of circumferentially distributed saw teeth being arranged at its external perimeter and with its center comprising a connection for fastening the sawblade at a driveshaft, and at least one side area of the core blade including open channels 7 for guiding liquids. A circular sawing machine having such a sawblade and a method for producing such a sawblade are also provided.

A support pad for a saw guide includes a first pad face and a second pad face opposite the first pad face. The first pad face includes an inner region and an outer region. The outer region surrounds the inner region. The outer region includes at least two pad openings and a pad channel. The pad openings are adapted to allow lubricant from the saw guide to pass through the support pad and to exit from the outer region. The pad channel extends between at least two of the pad openings. The pad channel provides a path for the lubricant to travel. The second pad face is adapted to be attached to the saw guide.

A support pad for a saw guide includes a first pad face and a second pad face opposite the first pad face. The first pad face includes an inner region and an outer region. The outer region surrounds the inner region. The outer region includes at least two pad openings and a pad channel. The pad openings are adapted to allow lubricant from the saw guide to pass through the support pad and to exit from the outer region. The pad channel extends between at least two of the pad openings. The pad channel provides a path for the lubricant to travel. The second pad face is adapted to be attached to the saw guide.

A wet cutting saw for cutting a ground portion, the wet cutting saw including a blade rotatable about an axis, a liquid feed conduit for feeding liquid onto a surface of the blade as it rotates, a frame for carrying the blade and configured to travel over a surface of the ground portion, and a mounting assembly that mounts the blade to the frame, at least part of the mounting assembly pivotable relative to the frame to raise and lower the blade relative to the frame.