North University of China

Bin Liu

Peikang Bai

Zhanyong Zhao

Jianhong Wang

Yu Wang

Hongkui Mao

Yan Han

Yihong Li

Jian Wang

Jingzhi Dang

Guowei Zhang

Xinyan Su

Ping Chen

Hong Xu

Jinxiao Pan

Zongyi Fan

Jiaotong Wei

Zhonghua Li

Huihua Kong

Fumin Hou

Xin Cao

Xibin Yan

Bingxin Guo

Sukai Wang

A large-field-of-view high-resolution imaging device includes an imaging array formed by splicing and combining a plurality of imaging units and a CSI phosphor screen. Each imaging unit is formed by coupling an array of light cones in series and an enhanced CCD. The series light cone array is formed by connecting a large light cone and a small light cone in series such that a small end face of the large light cone is connected with a large end face of the small light cone, a large end face of the large light cone is attached to the CSI phosphor screen, and a small end face of the small light cone serves as an input window of an image enhancer. The enhanced CCD is formed by coupling the image enhancer and a CCD camera. A photosensitive screen of the CCD camera serves as an output window of the image enhancer.

Large-field-of-view high-resolution imaging device

The disclosure provides a method for preparing a multiple-material variable-rigidity component by efficient collaborative additive manufacturing, relates to the technical field of additive manufacturing. In the disclosure, the method comprises: pretreating a component structure model and dividing the component structure model into a lightweight part with complex pore structures and a solid part that needs to be manufactured rapidly; preparing the lightweight part by a selective laser melting prototyping; performing a surface treatment on the prepared lightweight part to obtain a treated lightweight part; preparing the solid part on the treated lightweight part by a wire arc additive manufacturing, to obtain a component.

Method for preparing multiple-material variable-rigidity component by efficient collaborative additive manufacturing

The invention discloses a Selective Laser Melting forming device for multiple metal powder materials. Technical solutions adopted are as follows: a collector container, a build cylinder and a feed container are provided on a lower portion of a process chamber; leveling oil cylinders for the substrate are mounted in the build cylinder; a recoater bracket in the process chamber is slidably mounted on a slide rail; a recoater is fixed on a lower portion of the recoater bracket; a compaction roller is simultaneously mounted on the recoater bracket; a stress sensor is provided under the compaction roller; an electron microscope for collecting the porosity of the spread powder and the product and a melting pool monitoring Charge Coupled Device camera; a laser scanning system, a directional heating laser system and an alarm device are provided on a top portion of the process chamber.

SLM forming device for multiple metal powder materials

Growing community of inventors

Shanxi, China

Bin Liu