A laundry appliance defines a vertical direction, a lateral direction and a transverse direction that are mutually perpendicular to one another. The laundry appliance includes a cabinet defining an opening. A clothes vessel is rotatably mounted within the cabinet. The clothes vessel comprises a base and a hoop with a helical seam extending around the hoop. The clothes vessel is configured for receiving laundry articles to be rotated therein via the opening of the cabinet.

Provided are: an arc welding method that suppresses occurrences of blow holes in initial parts and final parts in a Zn plated steel sheet and reduces the occupancy ratio for blow holes in the welded part as a whole; and a welded joint.

Provided are: an arc welding method that suppresses occurrences of blow holes in initial parts and final parts in a Zn plated steel sheet and reduces the occupancy ratio for blow holes in the welded part as a whole; and a welded joint.

A welding robot (20) forms a laminate-molded object (11) by forming and laminating a melt bead (61) of each layer (L1 to Lk) so that a height (h.sub.now) of the melt bead (61) of each layer (L1 to Lk) is within a range of a tolerance () with respect to a planned height (h.sub.k). When the height (h.sub.now) of the melt bead (61) is lower than a value obtained by subtracting the tolerance () from the planned height (h.sub.k), the welding robot (20) forms another melt bead (61a) over the melt bead (61). When the height (h.sub.now) of the melt bead (61) is higher than a value obtained by adding the tolerance () to the planned height (h.sub.k), the melt bead (61) is removed by a cutting robot (30).

A welding robot (20) forms a laminate-molded object (11) by forming and laminating a melt bead (61) of each layer (L1 to Lk) so that a height (h.sub.now) of the melt bead (61) of each layer (L1 to Lk) is within a range of a tolerance () with respect to a planned height (h.sub.k). When the height (h.sub.now) of the melt bead (61) is lower than a value obtained by subtracting the tolerance () from the planned height (h.sub.k), the welding robot (20) forms another melt bead (61a) over the melt bead (61). When the height (h.sub.now) of the melt bead (61) is higher than a value obtained by adding the tolerance () to the planned height (h.sub.k), the melt bead (61) is removed by a cutting robot (30).

A method and apparatus for the automated or partially automated production of a polymer-enhanced pipe element, which include: providing a first pipe section and a second pipe section, each having a connecting region; detecting in the connecting regions a three-dimensional shape of the first pipe section and the second pipe section; determining a spatial penetration curve as a function of a superposition of the three-dimensional shapes; determining a cut contour, as a function of the penetration curve, in each of the connecting regions of the first pipe section and the second pipe section; generating edge surfaces in the connecting regions of the first and second pipe sections along the respective cut contours; aligning the generated edge surfaces of the pipe sections; and welding the first and second pipe sections along the mutually aligned edge surfaces along the determined spatial penetration curve.

A deformation prediction method for an additively manufactured object includes steps of dividing a shape of the additively manufactured object into a plurality of blocks, calculating deformation amount and deformation direction of each block before and after forming a weld bead by parallel processing of a plurality of threads based on the inherent strain method, setting at least one block group composed of blocks to be joined together among the plurality of blocks, and calculating deformation of an entirety of the block group by adding the deformation amount of each block composing the block group according to the deformation direction of the block.

In a building step, a base measurement processing of acquiring a measured height by measuring, using a shape sensor, a height of a base at a position where a torch is to be moved when depositing weld beads; a welding condition setting processing of obtaining a planned height of the base at the position where the torch is to be moved from a deposition plan, comparing the measured height acquired in the base measurement processing and the planned height to obtain a differential height, and setting a welding condition in a feedback correction for reducing the differential height; and a correction ratio update processing of performing a selection from a plurality of correction ratios set in advance and updating a correction ratio in the welding condition based on a selected correction ratio are executed.

In a building step, a base measurement processing of acquiring a measured height by measuring, using a shape sensor, a height of a base at a position where a torch is to be moved when depositing weld beads; a welding condition setting processing of obtaining a planned height of the base at the position where the torch is to be moved from a deposition plan, comparing the measured height acquired in the base measurement processing and the planned height to obtain a differential height, and setting a welding condition in a feedback correction for reducing the differential height; and a correction ratio update processing of performing a selection from a plurality of correction ratios set in advance and updating a correction ratio in the welding condition based on a selected correction ratio are executed.

A deposition planning method for an additively manufactured object includes: acquiring shape data; determining a welding path of each layer by slicing a three-dimensional shape of the additively manufactured object into layers; classifying a plurality of welding paths into intersection region paths and constant region paths; dividing the intersection region paths into a lower layer path and an upper layer path of an intersection portion; and determining welding conditions of the intersection region paths such that an upper layer deposit amount is more than a lower layer deposit amount, a sum of the upper layer deposit amount and the lower layer deposit amount is equal to a deposit amount in the constant region paths, and in a cross-section orthogonal to a longitudinal direction of the weld beads formed along the upper layer path, profiles of the weld beads adjacent to each other overlap each other.