The present invention relates to methods of working sheet metal, and sheet metal working apparatus for performing such methods. Such methods include steps of providing a sheet metal workpiece having first and second surfaces opposed to each other and at least one edge, bending the workpiece to form at least a first sidewall portion defined between the edge and a basal region, the first sidewall portion thereby defining a curved fold region in the sheet metal workpiece adjacent the first sidewall portion. Following this, first anvil tool and a first forming tool are provided for contact with and constraint of the first and second surfaces of the sheet metal workpiece respectively. The forming tool and/or the anvil tool are then progressively slid along the curved fold region to cause shear material transfer in the curved fold region to further deform the curved fold region. Such methods can allow for formation of components of similar shape as made at present by deep drawing methods, but with less wastage of the starting material.

A multi-stage incremental sheet forming system includes a forming tool, and at least one control unit in communication with the forming tool. The at least one control unit is configured to determine a convex hull of a target structure to be formed by the forming tool. The at least one control unit is further configured to operate the forming tool according to a first tool path in relation to an initial structure to form an intermediate structure having a shape based on the convex hull of the target structure. The at least one control unit is further configured to operate the forming tool according to a second tool path in relation to the intermediate structure to form one or more inward features into the intermediate structure to form the target structure.

This invention provides a polymer that is useful in a variety of applications, including as a binder polymer of a coating composition, and especially a packaging coating composition. Packaging articles (e.g., containers) comprising the polymer and methods of making such packaging articles are also provided.

This invention provides a polymer that is useful in a variety of applications, including as a binder polymer of a coating composition, and especially a packaging coating composition. Packaging articles (e.g., containers) comprising the polymer and methods of making such packaging articles are also provided.

Processes and methods related to processing and hot working alloy ingots are disclosed. A metallic material layer is deposited onto at least a region of a surface of an alloy ingot before hot working the alloy ingot. The processes and methods are characterized by a reduction in the incidence of surface cracking of the alloy ingot during hot working.

Processes and methods related to processing and hot working alloy ingots are disclosed. A metallic material layer is deposited onto at least a region of a surface of an alloy ingot before hot working the alloy ingot. The processes and methods are characterized by a reduction in the incidence of surface cracking of the alloy ingot during hot working.

Processes and methods related to processing and hot working alloy ingots are disclosed. A metallic material layer is deposited onto at least a region of a surface of an alloy ingot before hot working the alloy ingot. The processes and methods are characterized by a reduction in the incidence of surface cracking of the alloy ingot during hot working.

Processes and methods related to processing and hot working alloy ingots are disclosed. A metallic material layer is deposited onto at least a region of a surface of an alloy ingot before hot working the alloy ingot. The processes and methods are characterized by a reduction in the incidence of surface cracking of the alloy ingot during hot working.

The invention relates to a method and a device for incremental forming of a metal workpiece, having at least one spindle, on which the workpiece is clamped, and at least one spindle drive, with which the at least one spindle is set in rotation with the workpiece and/or at least one forming roller is set in rotation relative to the workpiece, wherein the at least one forming roller is advanced radially and/or axially relative to the rotating workpiece by way of at least one actuator. According to the invention, a computer-based controller is provided which records multiple machine parameters via sensors, which parameters comprise at least a rotation speed of the spindle, a position of the forming roller and forming forces and/or an advancement speed of the forming roller, and process parameters and/or workpiece parameters are also recorded by the controller, and the controller creates at least one data set in which the machine parameters are assigned to the process and/or workpiece parameters.

An incremental forming tool of a sheet material has a tool holder having an axis and at least one tool rod mounted in the tool holder. The at least one tool rod may have variable shapes, lengths, diameters and radii such that the rotation of the at least one tool rod about the axis of the tool holder on the sheet material simulates an up and down, in and out, and/or side-to-side vibration motion.