A saw blade includes a main body having a first surface, a second surface on an opposite side of the main body from the first surface, a proximal edge portion, a distal edge portion, and first and second side portions extending between the proximal and distal edge portions. The proximal edge portion is configured to be coupled to a rotatable hub such that the saw blade is held in a curved shape with the first surface defining an outer radius when the saw blade is coupled to the rotatable hub. The distal edge portion includes a plurality of cutting teeth, and the second surface includes a cutting structure configured such that a radius of an arc swept by the cutting structure when the saw blade is rotated is substantially equal to the outer radius of the first surface.

The invention relates to an interface between a knife and a knife holder, wherein the knife and the knife holder are designed such that the knife can be mounted on the knife holder in such a way that the knife is initially positioned on the knife holder in the axial direction, and then by rotating either the knife relative to the knife holder and/or the knife holder relative to the knife, the knife is locked on the knife holder with respect to the axial direction, wherein the knife has a single central fastening opening which is delimited by a knife edge region, and the knife holder has a fastening section for the fastening opening of the knife, which is delimited by a holder edge region.

In a circular saw blade, cutting teeth are joined to tooth bodies projecting outward in a radial direction at locations on an outer periphery of a disk-shaped metal base, gullets are provided between the tooth bodies so as to be recessed in the radial direction, radial clearance angles of side cutting edges of the cutting teeth are greater than 1 and less than 1, and a vibration prevention mechanism for preventing vibration of the metal base itself is provided. A ratio of a difference between a maximum value and a minimum value of pitches of the multiple cutting teeth to an average value of the pitches is 40% to 100%. A ratio of a difference between a maximum value and a minimum value of average values of depths of the adjacent gullets to an average value of depths of the gullets may be 20% to 100%.

An impact cutter blade and holder system is disclosed. The impact cutter blade and holder system includes: a cutter disk, a plurality of impact holders, and a plurality of impact cutter blades. The cutter disk has a central axis about which the cutter disk is configured to rotate. The plurality of impact holders are secured to the cutter disk. The plurality of impact cutter blades is secured to the plurality of impact holders.

A cutting disc for a machine for harvesting stem-like plants includes a number of elements which together can be attached or are attached to a bracket forming a circular ring with an outer cutting edge. At least one of the elements is attachable to the bracket in a first position, in which a first edge of the element forms the outer cutting edge, and in a second position, in which a second edge of the element forms the outer cutting edge. No matter whether the element is in the first of second position, a circular cutting edge is made up.

Arbors for circular saws and associated systems and methods are disclosed herein. In one embodiment, an arbor includes a coupler and a flange. The coupler can include an interior mounting face and an engagement feature, and the engagement feature can be shaped to extend through an opening in a saw blade. The flange can include an exterior mounting face and a recess, and the recess can be shaped to at least partially receive the engagement feature. The interior mounting face and the exterior mounting face can be configured to clamp the saw blade therebetween to mount the saw blade to a drive shaft of the circular saw.

The present invention relates to a control method in a system comprising a server unit having computer means, communication means and a first data base, said first data base including positioning data and a plurality of work orders, wherein said work orders are related to said positioning data; and a sawing machine having computer means and communication means, and being arranged for sawing trenches in an area; said method comprising the steps of: transmitting, by said server unit, a first data flow A comprising a first work order to said sawing machine; and controlling said sawing machine by means of said first work order. Furthermore, the invention also relates to a system thereof.

A saw blade is provided including a circular metal disc including a circular metal disc including a central aperture and a plurality of teeth spaced around a periphery of the circular metal disc. A first plurality of fully enclosed body slots are generally equally spaced from a center of the circular metal disc by a first distance and a second plurality of fully enclosed body slots are each disposed directly radially outward from a respective one of the first plurality of body slots. The second plurality of slots are generally equally spaced from the center of the circular metal disc by a second distance greater than the first distance. The saw blade design provides a blade with no modal frequencies in the operating frequency range.

A cutting tool and cutter body assembly, including a disk-shaped cutter body and a plurality of support pads removably retained therein, the cutter body having an axis of rotation, two opposing end surfaces and a body peripheral surface extending therebetween. Each support pad intersects one of two annular-shaped planes equidistantly offset from opposite sides of a median plane perpendicular to the axis of rotation, and the cutter body intersects neither of the two annular-shaped planes. Each support pad is configured to make operative contact with a machined surface of a workpiece perpendicular to the axis of rotation. Each support pad has opposing upper and lower surfaces and a pad peripheral surface extending therebetween, the pad peripheral surface having an upper portion intersecting the upper surface, and the upper portion exhibiting N-fold rotational symmetry about a pad axis non-perpendicular to the lower surface.

A circular saw blade includes a circular plate having a diameter, a thickness, a left face, a right face, a peripheral rim, and a central opening couplable to a powered saw. A plurality of alternating teeth and gullets are disposed about the peripheral rim, each tooth having a front face facing generally toward an adjacent gullet in the cutting direction and a recess defined in the front face. A plurality of cutting inserts are affixed in the recesses in the teeth. Each insert has rake face facing generally toward the adjacent gullet in the cutting direction, a relief face extending generally toward the adjacent top face, and a cutting edge at a junction between the relief face and the rake face. Each rake face is disposed at a hook angle between the rake face and a radius of the circular plate intersecting the cutting edge. The relief faces include a plurality of unbeveled relief faces, left-beveled relief faces beveled toward the left face of the circular plate, and a plurality of right-beveled relief faces beveled toward the right faces of the circular plate, arranged in an alternating top bevel with raker (ATB+R) bevel pattern.