Bonding methods for laminated light alloy parts

A method for additive manufacturing of an object, the method comprising:

• depositing a first foil sheet;
• forming, by cutting through the first foil sheet, at least one vertical inhibition region in the first foil sheet that separates the first foil sheet into at least one object region and at least one support region and defines a boundary between the at least one object region and the at least one support region in the first foil sheet;
• forming, through selective depositing of an inhibitory material on a selected area of the top surface of the first foil sheet, at least one horizontal inhibition region on the first foil sheet;
• depositing a second foil sheet onto the first foil sheet, wherein the first foil sheet and the second foil sheet each comprise a structural layer and the at least one horizontal inhibition region on the first foil sheet inhibits bonding between object and support regions of adjacent surfaces of the first foil sheet and the second foil sheet in the selected area of the at least one horizontal inhibition region;
• forming, by cutting through the second foil sheet, at least one vertical inhibition region in the second foil sheet that separates the second foil sheet into at least one object region and at least one support region and defines a boundary between the at least one object region and the at least one support region in the second foil sheet;
• forming a layer stack comprising the first foil sheet and the second foil sheet, the layer stack comprising an object section and at least one support section configured to enclose the object section in the layer stack, and the object section and the at least one support section are separated by at least one vertical inhibition region that defines a boundary between the object section and the at least one support section;
• and
• applying at least one of heat or pressure to opposite sides of the layer stack with a first plate and a second plate, wherein:
• applying the at least one of heat or pressure increases the temperature of the layer stack to a temperature lower than the melting temperature of the structural layer;
• the at least one of heat or pressure bonds the first foil sheet to the second foil sheet in the layer stack outside the area of the at least one horizontal inhibition region;
• the first plate and the second plate are in contact with the at least one support section;
• the at least one support section is configured to conduct the at least one of heat or pressure through the layer stack to the object section;
• and
• wherein the at least one support section is solid and configured to prevent deformation of the object section after initial deposition;
• and
• removing the at least one support section from the object section after said bonding is completed.