General Electric Company

Yingna Wu

Zirong Zhai

Yong Wu

Dalong Zhong

Hai Chang

Bin Wei

Hong Qing Zhou

Yifeng Wang

Liming Zhang

Yong Liang Liu

Hui Zhu

Yong Yang

Chuan Lin

Lyle Timothy Rasch

Xiaobin Chen

Lawrence James Whims

Thomas Edward Wickert

Yimin Zhan

Qing Gao

Jianping Wu

Yibo Gao

Youhao Yang

Yingbin Bao

Huiyu Xu

Wenlong Xu

Dalonq Zhonq

The present invention relates to an additive manufacturing system and its methods. The system includes a material conveyor, an energy source, and a micro-forging device. The material conveyor is configured to convey material. The energy source is configured to direct an energy beam toward the material, the energy beam fuses at least a portion of the material to form a solidified portion. The micro-forging device is movable along with the material conveyor for forging the solidified portion, wherein the micro-forging device comprises a first forging hammer and a second forging hammer, the first forging hammer is configured to impact the solidified portion to generate a first deformation, and the second forging hammer is configured to impact the solidified portion to generate a second deformation greater than the first deformation.

Composite forming system combining additive manufacturing and forging and methods for same

A forging head for additive manufacturing, comprising a base portion and a forging portion. The forging portion extends from the base portion for forging a cladding layer during formation of the cladding layer by additive manufacturing. The forging head further comprising a through hole which is formed through the base portion and the forging portion, for at least one of an energy bean and an additive material to pass through during formation of the cladding layer.

Forging heads and fixing devices with aligned through-holes and cavities

An additive manufacturing system, comprises an energy source device for providing a first energy beam and a second energy beam; and a forging device comprising a forging head. The first energy beam and a substrate are configured to move relative to each other to fuse at least a portion of a material added to the surface of the substrate for forming a cladding layer on the substrate. The forging head is configured to forge the cladding layer during formation of the cladding layer. The second energy beam is configured to heat a forging area of the cladding layer.

Additive manufacturing system and method

The invention relates to a temperature control system for additive manufacturing and method for same. The temperature control system comprises: a cladding device configured to fuse a material and form a cladding layer, the cladding device comprising a first energy source; a micro-forging device coupled to the cladding device for forging the cladding layer; a detecting device; a control module; and an adjusting module coupled to at least one of the first energy source and the micro-forging device.

Temperature control system for additive manufacturing and method for same

A method for removing oxide materials from a crack of a metallic workpiece comprises: infiltrating an alkali solution into the crack in a pressurized atmosphere or an ultrasonic environment; applying an energy to the crack to react the oxide materials with the alkali solution and form a resultant material; and rinsing the resultant material with an acid solution to remove the resultant material from the crack. The method is easier to penetrate into the inside of the cracks, in particular suitable for cleaning narrow and deep cracks.

Method for removing oxide materials from a crack

An ultrasonic roller burnishing system comprises a roller and a controller. The roller is configured to be pressed against a surface of a workpiece to a pressing depth, roll on the surface at a feed rate, and vibrate at an ultrasonic frequency under a back pressure. The roller is pressed and rolled by a motion unit which is driven by a drive motor. The vibrating of the roller is driven by an ultrasonic vibration unit with an input current inputted thereinto. The controller is configured to adjust at least one of the pressing depth, the back pressure, the input current and the feed rate based on an expected residual compressive stress and a real time output power of the drive motor, to generate a residual compressive stress in the workpiece which is in an expected range predetermined based on the expected residual compressive stress.

Ultrasonic roller burnishing system and method, and method for machining component

A method for removing oxide from a metallic substrate is described. The method includes providing a stream of boron trifluoride; heating the metallic substrate at a first temperature; and heating the metallic substrate at a second temperature different from the first temperature. An associated apparatus is also described.

Method and apparatus for removing oxide from metallic substrate

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Shanghai, China

Yingna Wu