A coated mold which can exhibit good sliding properties, and has further reduced droplets and excellent durability. The coated mold has a hard coating on a work surface, the hard coating including layer A in which layer a1 and layer a2 are alternately laminated, wherein the layer a1 is composed of a Cr-based nitride and has a thickness of 100 nm or less, and the layer a2 is composed of a nitride or carbonitride of (V.sub.1-aM.sub.a) (M is at least one selected from Mo and W), has an atomic ratio a of M to the sum of V and M of 0.05 or more and 0.45 or less, and has a thickness of 80 nm or less. Also: a method for manufacturing a coated mold; and a hard coat-forming target which can be used in the method for manufacturing a coated mold.

A coated mold which can exhibit good sliding properties, and has further reduced droplets and excellent durability. The coated mold has a hard coating on a work surface, the hard coating including layer A in which layer a1 and layer a2 are alternately laminated, wherein the layer a1 is composed of a Cr-based nitride and has a thickness of 100 nm or less, and the layer a2 is composed of a nitride or carbonitride of (V.sub.1-aM.sub.a) (M is at least one selected from Mo and W), has an atomic ratio a of M to the sum of V and M of 0.05 or more and 0.45 or less, and has a thickness of 80 nm or less. Also: a method for manufacturing a coated mold; and a hard coat-forming target which can be used in the method for manufacturing a coated mold.

A regenerating system for a forge die (1) according to the invention comprises a detecting device (10) of a shape (2) of a die (1) to be regenerated, a welding system (30) configured such as to deposit welding material in the die (1), and a processor (20) configured such as to define welding pathways (11) in order to activate the welding system (30), wherein the welding pathways (11) are defined according to the shape (2) detected and a predefined shape of the die (1).

A regenerating system for a forge die (1) according to the invention comprises a detecting device (10) of a shape (2) of a die (1) to be regenerated, a welding system (30) configured such as to deposit welding material in the die (1), and a processor (20) configured such as to define welding pathways (11) in order to activate the welding system (30), wherein the welding pathways (11) are defined according to the shape (2) detected and a predefined shape of the die (1).

Various embodiments described herein provide a fastener system having straight walled driving surfaces that provides a reliable stick fit feature, while also improving stability of engagement between the system components. A feature of the new system is to allow stick fit engagement of existing standard straight walled drivers in the new system.

A secondary battery case manufacturing method of the present disclosure includes preparing a material, forming an impact formed product by performing impact forging on the material with a die and a punch, and obtaining a complete product by applying ironing on the impact formed product.

Provided is an inexpensive hot forging die which allows a desired shape to be obtained even from a large-sized forging material. A hot forging die, for closed die hot forging of a material to be forged, includes a plurality of ring-shaped die pieces which are combined concentrically and fastened with each other, wherein an axial direction of the ring-shaped die pieces is identical with a pressing direction when the material is forged, and wherein a die face and a build-up layer of a nickel-base super heat-resistant alloy are formed at a part of the hot forging die, which is brought into contact with the material to be forged.

Provided is an inexpensive hot forging die which allows a desired shape to be obtained even from a large-sized forging material. A hot forging die, for closed die hot forging of a material to be forged, includes a plurality of ring-shaped die pieces which are combined concentrically and fastened with each other, wherein an axial direction of the ring-shaped die pieces is identical with a pressing direction when the material is forged, and wherein a die face and a build-up layer of a nickel-base super heat-resistant alloy are formed at a part of the hot forging die, which is brought into contact with the material to be forged.

A method for producing a tool for machining a workpiece. A metal tool blank is provided in a laser machining device which structures the tool blank on a tool surface via interference from at least two laser beams. The at least two laser beams have at least temporary pulse durations of at most 15 ps, and via the structuring on the tool surface a tool profile is generated having at least one indentation. A tool structured in this manner, a method for machining a workpiece via the tool, and a workpiece machined in this way, are also provided.