A method has acts of providing a blank of head, providing a reinforcement element, combining the blank of head and the reinforcement element, and co-forging. The blank of head is made of a material having a hardness ranging from HRB50 to HRB105 measured by Rockwell Hardness Test and being softer than HRB105 and has a recess. The reinforcement element is made of a material having a hardness ranging from HRC15 to HRC55 measured by Rockwell Hardness Test. The reinforcement element is put into the recess in the blank of head, and an inner surface of the recess and the reinforcement element are combined securely with each other completely by a welding process. The blank of head combined with the reinforcement element is put into a mold, is heated to 700° C. to 1100° C., and is applied with a co-forging process to form an eutectic bonding by thermocompression.

A cartridge for an air-cooled plasma arc torch is provided. The cartridge includes a swirl ring having a molded thermoplastic elongated body with a distal end, a proximal end, and a hollow portion configured to receive an electrode. The swirl ring also has a plurality of gas flow openings defined by the distal end of the elongated body and configured to impart a swirling motion to a plasma gas flow for the plasma arc torch. The swirl ring further includes a nozzle retention feature on a surface of the elongated body at the distal end for retaining a nozzle to the elongated body. The cartridge further includes a cap affixed to the proximal end of the elongated body of the swirl ring for substantially closing the proximal end of the elongated body.

A cartridge for an air-cooled plasma arc torch is provided. The cartridge includes a swirl ring having a molded thermoplastic elongated body with a distal end, a proximal end, and a hollow portion configured to receive an electrode. The swirl ring also has a plurality of gas flow openings defined by the distal end of the elongated body and configured to impart a swirling motion to a plasma gas flow for the plasma arc torch. The swirl ring further includes a nozzle retention feature on a surface of the elongated body at the distal end for retaining a nozzle to the elongated body. The cartridge further includes a cap affixed to the proximal end of the elongated body of the swirl ring for substantially closing the proximal end of the elongated body.

A method of fabricating of an object includes causing a first heat source to heat a feed material to form a melt pool of the feed material on a surface. The method further includes causing a second heat source to heat the melt pool on the surface to regulate grain formation of the feed material in the melt pool as the melt pool cools and solidifies on the surface to form at least a portion of the object. The method also includes causing the first heat source and the second heat source to move relative to the surface as the melt pool is formed and cooled.

A method is disclosed for additive manufacturing a three-dimensional object layer-by-layer including depositing a layer of material on a bed surface or a previously deposited layer of the object to form the object layer-by-layer; providing energy to the material after each layer is deposited with the energy being provided by an energy source that forms an energized beam directed at the material; altering a property of a gas surrounding the material and through which the energized beam extends to alter a property of the object constructed from the material; melting the material with the energized beam to form a melted pool of liquefied material; and allowing the material to solidify to bond the material to a previous layer of material of the object.

A tailored blank including a first steel sheet having a carbon content of 0.27 mass % or more, and a second steel sheet that is butt welded to the first steel sheet and that has a carbon content of 0.20 mass % or less, wherein the tailored blank includes an elongated future top plate portion, a future sidewall portion, and a future flange portion, a first steel sheet region that is configured by the first steel sheet is formed spanning part or all of a length direction of the future top plate portion, and a second steel sheet region that is configured by the second steel sheet is formed at the future flange portion to be joined by welding to another member, and wherein part or all of a length direction of the first steel sheet region is positioned within a length direction range of the second steel sheet region.

Embodiments of multi-process hardened golf club heads and methods of multi-process hardening of golf club heads are generally described herein. Other embodiments and methods may be described and claimed.

A hot-pressed member is formed using a tailored blank material obtained by butt joining respective ends of two or more coated steel sheets. The hot-pressed member has two or more sites formed by the respective coated steel sheets and at least one joining portion between the sites. Depending on a type of a coated layer of each of the coated steel sheets, t.sub.w/t.sub.0 is appropriately controlled where t.sub.w is a thickness of a thinnest portion in the joining portion and t.sub.0 is a thickness of a thinnest site of the sites. A tensile strength of each of the sites is 1180 MPa or more.

A hot-pressed member is formed using a tailored blank material obtained by butt joining respective ends of two or more coated steel sheets. The hot-pressed member has two or more sites formed by the respective coated steel sheets and at least one joining portion between the sites. Depending on a type of a coated layer of each of the coated steel sheets, t.sub.w/t.sub.0 is appropriately controlled where t.sub.w is a thickness of a thinnest portion in the joining portion and t.sub.0 is a thickness of a thinnest site of the sites. A tensile strength of each of the sites is 1180 MPa or more.

Provided are a systems and methods for manufacturing objects by solid freeform fabrication, especially titanium and titanium alloy objects, wherein the deposition rate is increased by using two separate heat sources, one heat source for heating the deposition area on the base material and one heat source for heating and melting a metallic material, such as a metal wire or a powdered metallic material.