A laser cladding method includes directing a filler material in a pulverulent form along a respective working trajectory onto each respective surface of two mutually opposite surfaces of a component, and heating the filler material and the component by directing a respective laser beam along the respective working trajectory so that the filler material binds to the component as the filler material meets the respective surface, thereby producing coating layers on the two mutually opposite surfaces at least partly at a same time.

This welding state determination system acquires, for each weaving cycle, a characteristic amount that pertains to a physical quantity that changes according to the cycle of a weaving operation. A degree of abnormality is calculated based on an observation value that is the characteristic amount acquired in one cycle, and the average and standard deviation of a plurality of past values that are the characteristic amounts acquired prior to the one cycle. A welding state is determined based on the calculated degree of abnormality.

A method for determining a welding sequence including a plurality of welding operations is disclosed. The method includes steps of determining a population of welding sequences based on a set of user-generated constraints, and simulating welding for at least one welding sequence in the population of welding sequences to obtain a multi-objective dependent distortion model of the at least one welding sequence. The method further includes steps of comparing a merit value of the multi-objective dependent distortion model for the at least one welding sequence with one or more predetermined criteria, and outputting a set of welding sequences as potential welding sequences based on the comparison between the merit value and the multi-objective dependent distortion model.

A distortion correction method includes: a reference surface forming process for fabricating a reference surface as a circumferential surface in an outer circumference of a raw pipe having both axial ends to which fitting members are welded; a connecting member installation process for installing a reference surface of the raw pipe in a roller contact member that rotatably supports the raw pipe; a measurement process for measuring a tilt of the fitting member rotating along with the raw pipe by virtue of the roller contact member with respect to an axial direction of the raw pipe; and a distortion correction process for performing TIG welding for a weld portion between the raw pipe and the fitting member on the basis of a result of the measurement in the measurement process to correct the tilt of the fitting member with respect to the axial direction of the raw pipe.

A metal block has a joint element. The joint element is defined between a trench in an outer surface of the metal block and a hole extending from the outer surface of the metal block to the interior space. The trench is configured such that when heat is applied to the joint element the trench reduces dissipation of the heat throughout the metal block. The hole is configured to receive a metal tube.

Provided are a mount system and systems and methods using the mount system for manufacturing objects, especially titanium and titanium alloy objects, by directed energy deposition. The methods include thermally pre-bending the substrate onto which the object is to be manufactured to form a pre-bent substrate, attaching the pre-bent substrate to a jig using the mount system as an underlying support, pre-heating the substrate, and forming the object on the pre-heated, pre-bent substrate using a directed energy deposition technique.

An intelligent electromagnetic induction heating leveling system, comprising: a trolley type leveler, an unmanned aerial vehicle temperature measurement device, indoor positioning devices used for converting position information of a trolley of the trolley type leveler and the unmanned aerial vehicle temperature measurement device into position parameters, and a control system. The system can perform, according to preset data parameters, data transmission by means of a wireless local area network and the unmanned aerial vehicle temperature measurement device and control the unmanned aerial vehicle temperature measurement device to move to a specified position. The system intelligently controls the leveling temperature and leveling time of a leveling area, and thus may be suitable for leveling of weld joints having different sizes and depths, and achieve a good leveling effect. Also provided is an intelligent electromagnetic induction heating leveling method.

A method for forming a pressure fit hermetic seal between a second component (104) and an interior member (108) is disclosed. The method comprises steps of coupling the second component (104) to a first component (102) by applying heat to one or more of the first component (102) and the second component (104) and allowing the first component (102) and the second component (104) to cool, wherein the applying heat step and allowing to cool step form the hermetic seal by causing compression of a hermetic element (106) against the second component (104) and by causing compression of the hermetic element (106) against the interior member (108).

The present disclosure provides a pre-stressed steel sheet comprising: a base material; and a plurality of weld lines formed on the base materials, wherein the average spacing between each pair of the weld lines is equal to or greater than five times the width of the weld lines and equal to or less than half the width of the steel sheet.

Pistons and methods of making the same are disclosed. An exemplary piston assembly may include a piston crown and skirt. The crown may include a crown collar wall extending downward toward a free end of the crown collar wall. The skirt may include a pair of oppositely disposed pin bosses that each define piston pin bores configured to receive a piston pin for securing a connecting rod between the pin bosses. The skirt may further include a radially inner skirt mating surface abutted along a radially inner interface region with the radially inner crown mating surface, and a radially outer skirt mating surface abutted along a radially outer interface region with the radially outer crown mating surface such that a cooling gallery is substantially enclosed. The skirt may further include an inner collar wall extending upwards to the free end of the crown collar wall.