A forming system that includes a first die having a first die surface and a second die having a second die surface is provided. The first and the second die surfaces are configured to cooperate to form a die cavity therebetween so as to receive a workpiece therein. Coatings are formed on opposing portions of the first and second die surfaces. The coatings on the opposing portions of the first and the second die surfaces cooperate to be on opposite sides of the workpiece received in the die cavity. A ratio of Vanadium to Tungsten in the coatings is in the range between 0.31 and 0.45. In one embodiment, each of the coatings includes at least two layer configuration. In another embodiment, each of the coatings includes a predetermined thickness.

A forming system that includes a first die having a first die surface and a second die having a second die surface is provided. The first and the second die surfaces are configured to cooperate to form a die cavity therebetween so as to receive a workpiece therein. Coatings are formed on opposing portions of the first and second die surfaces. The coatings on the opposing portions of the first and the second die surfaces cooperate to be on opposite sides of the workpiece received in the die cavity. A ratio of Vanadium to Tungsten in the coatings is in the range between 0.31 and 0.45. In one embodiment, each of the coatings includes at least two layer configuration. In another embodiment, each of the coatings includes a predetermined thickness.

The present invention relates to a drawing die (10) for working depressions(76) of a sheet-metal component (26), in particular of a motor vehicle, comprising a load-bearing structure (12), at least one supporting portion (16), which is fastened or can be fastened on the load-bearing structure (12) and with which the drawing die (10) can be placed on the sheet-metal component (26), characterized by a drawing means (28) which can be connected to the sheet-metal component (26) and is mounted on the load-bearing structure (12), and a moving device (36), which is mounted on the load-bearing structure (12) and by means of which the drawing means (28) can be moved in relation to the sheet-metal component (26), wherein at least the load-bearing structure (12) is formed from a fiber-reinforced plastic (52).

The present invention relates to a drawing die (10) for working depressions(76) of a sheet-metal component (26), in particular of a motor vehicle, comprising a load-bearing structure (12), at least one supporting portion (16), which is fastened or can be fastened on the load-bearing structure (12) and with which the drawing die (10) can be placed on the sheet-metal component (26), characterized by a drawing means (28) which can be connected to the sheet-metal component (26) and is mounted on the load-bearing structure (12), and a moving device (36), which is mounted on the load-bearing structure (12) and by means of which the drawing means (28) can be moved in relation to the sheet-metal component (26), wherein at least the load-bearing structure (12) is formed from a fiber-reinforced plastic (52).

Processes and material compositions are disclosed for applying polymer additive manufacturing to producing press dies, such as for sheet metal forming. As disclosed in various embodiments, material compositions comprise a thermoplastic, a first filler having low aspect ratio particles and a second filler having high aspect ratio. In at least one embodiment, composites according to the disclosed teachings have a compressive modulus greater than 3500 MPa and a compressive strength greater than 70 MPa, such that the composites have sufficient mechanical properties for press tooling and are amenable to extrusion-type additive manufacturing processes. In at least one embodiment, the use of the disclosed composites with additive manufacturing enables reduced overall mass of tooling by inclusion of voids inside the die.

A vanadium silicon carbide film contains vanadium, silicon, and carbon, in which the total of a vanadium element concentration, a silicon element concentration, and a carbon element concentration in the film is 90 at % or more.

A detection device for virus detection is provided, which includes: a carrier including a recess; and a metal layer disposed in the recess and having a contact angle ranging from 0 degrees to 10 degrees, wherein a plurality of cavities are formed on a first surface of the metal layer opposite to a second surface of the metal layer facing the carrier, the plurality of cavities are arranged in an array, and a plurality of first protrusions are formed on the first surface of the metal layer and near to the plurality of cavities. In addition, a detection system for virus detection comprising the aforesaid detection device, a method for detecting viruses using the aforesaid detection device, and a method for preparing the detection device are also provided.

A detection device for virus detection is provided, which includes: a carrier including a recess; and a metal layer disposed in the recess and having a contact angle ranging from 0 degrees to 10 degrees, wherein a plurality of cavities are formed on a first surface of the metal layer opposite to a second surface of the metal layer facing the carrier, the plurality of cavities are arranged in an array, and a plurality of first protrusions are formed on the first surface of the metal layer and near to the plurality of cavities. In addition, a detection system for virus detection comprising the aforesaid detection device, a method for detecting viruses using the aforesaid detection device, and a method for preparing the detection device are also provided.

A method of producing a hot press-formed product, in which a die includes a hard layer having a skewness (Rsk), as measured in a direction from the outside of a die hole toward the inside of the die hole, of from −5.0 to 1.2, and a hardness Hv_Die of from HV 1,000 to 1,550, over the entirety of a region of a steel sheet contact surface that is adjacent to a die shoulder portion. The steel sheet contact surface is a surface located outside of the die hole and configured to contact a plated steel sheet (a plated steel sheet including at least one kind of plating layer selected from the group consisting of a hot-dip galvanizing layer and a zinc nickel plating layer) that is to be subjected to hot press forming.

A method of producing a hot press-formed product, in which a die includes a hard layer having a skewness (Rsk), as measured in a direction from the outside of a die hole toward the inside of the die hole, of from −5.0 to 1.2, and a hardness Hv_Die of from HV 1,000 to 1,550, over the entirety of a region of a steel sheet contact surface that is adjacent to a die shoulder portion. The steel sheet contact surface is a surface located outside of the die hole and configured to contact a plated steel sheet (a plated steel sheet including at least one kind of plating layer selected from the group consisting of a hot-dip galvanizing layer and a zinc nickel plating layer) that is to be subjected to hot press forming.