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1752results about How to "Fast forming" patented technology

Equipment for manufacturing large-size metal part in high energy beam additive manufacturing mode and control method of equipment

The invention discloses equipment for manufacturing a large-size metal part in a high energy beam additive manufacturing mode and a control method of the equipment. The equipment comprises a work cavity, a worktable, a control system, a high energy beam scanning generator, a powder storage hopper, a powder laying device and a gas purification module, wherein the worktable is composed of a forming cylinder and a powder recycling cylinder, and the upper surface of the forming cylinder and the upper surface of the powder recycling cylinder are coplanar and form a work plane. The control system controls the high energy beam scanning generator and the powder laying device to move opposite to the worktable in the powder laying direction. The equipment for manufacturing the large-size metal part in the high energy beam additive manufacturing mode and the control method of the equipment largely shorten the waiting time caused by pre-installation of a powder bed when a common laser/electron beam selective melting technology is used for processing a part, thereby obviously improving the forming efficiency of high energy beam additive manufacturing. Through the application of the equipment for manufacturing the large-size metal part in the high energy beam additive manufacturing mode and the control method of the equipment, a metal part with a meter-grade size, high performance, high accuracy and a complex structure can be manufactured efficiently and rapidly.
Owner:TECH LASER TECH SHANGHAI CO LTD

Shaping and trimming method of crowns of pear trees

The invention relates to a shaping and trimming method of crowns of pear trees. The crowns are trimmed into a structure of two layers of main branches, wherein each layer of main branches comprises two main branches facing south and north, and lateral branches are left at two sides of the main branches in the horizontal direction. The shaping and trimming method has the advantages of facilitating flower bud differentiation, increasing effective photosynthetic accumulation, enhancing wind resistance, and obviously improving the commodity quality of fruit of a single-layer planar pergola shaping method; moreover, the shaping of the crowns is quick; the cultivation of crown structure can be completed to enter the early fruit period 3 years after the planting in general; the yield of a single plant can be controlled to be 6-10kg, and increases year by year; meanwhile, trimmed crowns do not contain sub-main branches; the trimming method is simple, and is easy to master; the work space of the flower and fruit management of a pear orchard can be controlled; labor and force are saved; the labor efficiency is improved; and the management cost of the orchard is reduced; in addition, the method is suitable for a flat land or a gentle slope landform undulation, and is particularly suitable for a gentle slope with the landform undulation or a slope land with the slope of less than 15 DEG.
Owner:YANGZHOU UNIV +1

Detector for determining a position of at least one object

ActiveUS20170205230A1Optimized loading and packing container and vehicleReduce wasteOptical rangefindersPosition fixationLight beamBeam cross section
A detector (110) for determining a position of at least one object (112), the detector (110) comprising: at least one GP transfer device (114) for imaging the object (112) into an image plane (116), the transfer device (114) having a focal plane (118), at least one longitudinal optical sensor (122), wherein the longitudinal optical sensor (122) has at least one sensor region (124), wherein the longitudinal optical sensor (122) is at least partially transparent, wherein the longitudinal optical sensor (122) is designed to generate at least one longitudinal sensor signal in a manner dependent on an illumination of sensor region (124) by at least one light beam propagating from the object to the detector (110), wherein the longitudinal sensor signal, given the same total power of the illumination, is dependent on a beam cross-section of the light beam in the sensor region (124); and at least one evaluation device (129), wherein the evaluation device (129) is designed to generate at least one item of information on a longitudinal position of the object (112) by evaluating the longitudinal sensor signal. Herein the at least one longitudinal optical sensor (122) comprises a focal longitudinal optical sensor (136), wherein the focal longitudinal optical sensor (136) at least substantially is arranged in the focal plane (118).
Owner:BASF AG
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