An agricultural cutting blade has top and bottom surfaces and mounting apertures extending through top and bottom surfaces. A cutting edge support surface (e.g. that may be a flat, pointed or rounded) is formed on the cutting blade body with the cutting edge support extending along a side of the cutting blade body transversely between the top and bottom surfaces. A clad material deposited upon the cutting edge support such as by laser cladding process. The clad material can be built up, that is layered in partial or full overlapping relation to provide at least 2 and often more than 4 layers of clad material at one or more locations. A cutting edge provided by the clad material that may be a ground surface into a laser clad bead.

The present invention provides an edge wear protector system adapted to be attached to a bucket of earth moving equipment, the bucket includes a base plate and a side plate connected to the base plate. The edge wear protector system includes a first member attachable to the base plate. First member includes an attaching side adapted to connect to the base plate when the first member is attached to the base plate, such that the first member includes a plug channel adapted to receive a plug weld therein and the plug channel is disposed on the attaching side of the first member. The edge wear protector includes a second member attachable to the side plate. Second member includes an attaching side adapted to connect to the side plate when the second member is attached to the side plate, such that the second member includes a plug channel adapted to receive a plug weld therein and the plug channel is disposed on the attaching side of the second member; and such that the first member is connectable to the second member.

A boring bit or other component for horizontal directional drilling is provided which includes a hard faced layer that is preferably made by a laser cladding bead. A subsequent or post heat treatment is applied to modify the heat affected zone (HAZ) to eliminate or reduce the hard brittle regions and/or softer regions in the base iron or steel material of the HAZ. Further, the hard faced layer may be applied in combination with carbide insert teeth that are embedded within the steel base of the boring bit body, such as by press fitting.

The disclosure relates to bonded assemblies (89) and a method of manufacture of such bonded assemblies (89). A such bonded assembly (89) has low residual stress and includes an inner body (91) having a substantially conical form, an outer body (90) having a substantially conical recess and a bonding region; whereby the conical form is in a first material having a thermal expansion coefficient al and the conical recess is in a second material having a thermal expansion coefficient a2 whereby al is not equal to a2; whereby said conical form includes an axis (31) extending in an axial direction and is substantially concentric with said conical recess; said bonding region including at least a third material having a plurality of grains and with an alignment of said grains relative to the generatrices of said conical form and said conical recess; said related method including an axial displacement of said inner body (91) relative to said outer body (90) simultaneous with cooling of said bonded assembly (89) from an elevated temperature to a low or ambient temperature.

The present disclosure relates to a brazed superabrasive assemblies and method of producing brazed superabrasive assemblies. The brazed superabrasive assemblies may include a plurality of braze alloy layers that are positioned opposite a stress relieving layer. The stress relieving layer may have a solidus temperature that is greater than a solidus temperature of the plurality of braze alloy layers.

A method for manufacturing an ultra-hard and wear-resistant composite blade, comprising the following steps: carrying out pre-blank-fabricating and pre-matrix-forming treatments on a blade matrix (2) material to form a preformed blank; adding an ultra-hard alloy material in the preformed blank by means of an ultra-high-temperature melting treatment; after cooling, machining and grinding according to the blade specifications to obtain the ultra-hard, wear-resistant and antirust composite blade. The composite blade manufactured using the method has ultra-high hardness, wear resistance and blank antirust performance; moreover, the cutting edge of the nanoscale ultra-hard alloy body is durable and sharp and is not liable to wear.

The present invention discloses a cutting assembly. The cutting assembly includes a substrate, a cutting edge, and a welding portion. The substrate includes a first metal portion, and the first metal portion has a first side surface. The cutting edge is formed by overlapping a second metal portion with a third metal portion used for an edge, the second metal portion is of high-strength alloy steel and has a second side surface, and the third metal portion is of high-speed tool steel and has a third side surface. The welding portion connects the first metal portion and the second metal portion. The present invention further provides a method for manufacturing a cutting assembly, including: welding a composite steel strip to a substrate, to form a blank body of the cutting assembly; and then performing low-temperature tempering treatment on a welding portion. The cutting assembly in the present invention uses three metal structures, and uses medium-high carbon steel or low alloy steel with relatively low costs as a material of the substrate, so that the costs of a hand saw with a relatively size to which the cutting assembly is applied can be reduced. A tooth tip of the hand saw uses a high-speed steel material such as M2, M42, or M35, so that the abrasive resistance of the hand saw is dramatically improved, and the service life of the saw is increased.

Disclosed herein is a method of manufacturing a cutting member that has a first portion for supporting, a second portion for forming a cutting edge, and a third portion connecting the first and second portion; the method includes: providing a first metal material used for forming the first portion; providing a second metal material used for forming the second portion; welding the first and second metal material with high energy density beam to form the third portion at the welding site; performing heat treatment on a cutting member blank obtained after welding. Also disclosed is a cutting member, the first portion of a first metal material; the second portion of a second metal material; after welding, the metallographic structure of the third portion and its nearby metallographic structure are substantially free of holes. The body of the manufactured cutting member has good toughness, the cutting edge has high hardness, and the body and cutting edge are not easily broken and have long service life.

The disclosure describes assemblies, systems, and techniques for reinforcing complex geometries of pressure vessels using a pre-sintered preform (PSP) braze material that includes a low-melt powder and a high-melt powder. An example technique includes positioning a PSP reinforcement on a surface of a substrate. The technique includes heating the PSP reinforcement to soften or melt at least one constituent metal or alloy of the low-melt powder. During heating, the PSP reinforcement is configured to conform to a contour of the surface of the substrate. The technique also includes cooling the PSP reinforcement to define a reinforced component.

This invention discloses the carbide saw blade and the welding method thereof. The method includes: S1, heating the carbide tool bit, the saw blade base, the welding wire and the welding flux that well-placed; S2, at temperature 760? C.-840? C., spreading the melted welding wire to the gap between the carbide tool bit and the saw blade base by using the wetting action of the welding flux; S3, cooling to obtain a preliminary welding body, when the temperature of the preliminary welding body is lower than 350? C., the preliminary welding body will be processed to first tempering; S4, within 1-3 hours after first tempering, second tempering the preliminary welding body to obtain carbide saw blade; second tempering process is performed in a sealed container, and in this container the temperature of each spatial location is consistent. This invention solves the problems of breaking of the tooth holder during cutting and tensile stress cracking between the adjacent sawteeth.