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Sandviken, Sweden

Sandvik is a global company founded in 1862 by Göran Fredrik Göransson in Sandviken, Sweden. Sandvik is a high-technology engineering group in tools and tooling systems for metal cutting, mining, construction equipment, products in advanced stainless steels and special alloys. Sandvik has about 47,000 employees in 130 countries, with annual sales of approximately SEK 87 billion . Wikipedia.


Patent
Sandvik AB | Date: 2015-12-07

An austenitic alloy for high temperature use, particularly for use in resistance heating elements. The alloy includes primarily the elements Fe, Ni, and Cr, and it has the following main composition, given in weight %, Ni 38-48, Cr 18-24, Si 1.0-1.9, C <0.1, and the balance Fe. The alloy provides good hot form stability, good oxidation resistance, and a relatively high electrical resistance coupled with a low change in resistance as a function of temperature.


Patent
Sandvik AB | Date: 2015-08-14

A clamping device for releasably holding a tool holder shank is formed with an engagement bore in a rear end, and includes a housing having a bore in a forward end for receiving the tool holder shank, a drawbar reciprocally movable inside the housing and which in a forward end is provided with engagement means arranged to engage with an engagement formation inside the engagement bore of the tool holder shank, and which is formed with a drawbar aperture extending through the drawbar in a transverse direction of the same, and a cam shaft extending through the drawbar aperture. The cam shaft includes three cam formations and more precisely first and second spaced apart cam formations, which are journalled in seating apertures in the housing on opposite sides of the drawbar, and an intermediate third cam formation located between the first and second cam formations and positioned within the aperture of the drawbar. The drawbar is insertable into the bore from the forward end.


Patent
Sandvik AB | Date: 2015-08-14

A clamping device for releasably holding a tool holder shank formed with a bore includes a housing having a forwardly facing surface and a bore. A drawbar is mounted reciprocally movable inside the bore and which in a forward end has engagement device, which is arranged to engage with an engagement formation inside the bore of the tool holder shank. The drawbar is, in a rear portion, formed with a drawbar aperture extending through the drawbar in a transverse direction in relation to a longitudinal axis of the same, and a cam shaft extending through the drawbar aperture and being rotatably journalled in the housing and arranged to impart an axial displacement to the drawbar in relation to the housing. The cam shaft includes first and second spaced apart cam formations and an intermediate circular cylindrical portion located between the cam formations, wherein the first and second cam formations are journalled in a first and second seating apertures, respectively, in the housing on opposite sides of the drawbar. The intermediate circular cylindrical portion is extended through the drawbar aperture, and the drawbar is insertable into the bore through the forwardly facing surface.


Patent
Sandvik AB | Date: 2015-05-05

A milling tool includes a tool body having a peripheral surface and a central rotation axis. A number of cutting teeth protrude from the peripheral surface, a front end set of the cutting teeth arranged along a front end portion of an imaginary helix concentric with the central rotation axis, and a back end set along a back end portion of the helix. The cutting teeth engage the workpiece successively, starting with the foremost cutting tooth of the front end set. The back end set includes at least three along the helix adjacent cutting teeth arranged at a constant first radial distance from the central rotation axis. The front end set has at least two adjacent cutting teeth arranged at an along the helix non-constant second radial distance from the central rotation axis. The second radial distance is smaller than the first radial distance and increases successively along the helix.


Patent
Sandvik AB | Date: 2015-06-11

The present disclosure relates to a flushing system and a method of controlling the feeding of flushing fluid. The flushing system includes a pump unit for feeding pressurized flushing fluid to a feed duct connected to a rock drilling machine. The flow rate of the flushing fluid to be fed is controlled by controlling the pumping of the flushing fluid. The flow rate is determined by one or more sensing devices.

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