1569 results about "Machine building" patented technology

The invention discloses a cutting-stirring friction welding composite processing device for a floating double-shaft-shoulder double-stirring needle and a manufacture method thereof, and particularly relates to a combined or composite processing device capable of simultaneously carrying out milling or cutting processing and stirring friction welding processing and a method thereof. The cutting-stirring friction welding composite processing device for the floating double-shaft-shoulder double-stirring needle integrates a cutting system or a milling system, a stirring friction welding system, a forced cooling system, a gas protection system, a temperature sensing system, a pressure induction system, a milling liquid supply system and a sensing-free system. The cutting-stirring friction welding composite processing device has functions of temperature control, gas protection, pressure detection, cooling liquid protection, milling head replacing and floating double-shaft-shoulder self-supporting stirring friction welding. The method for carrying out cutting-stirring friction welding composite processing on workpieces can meet strength requirements of mechanical processing of ferrous light metal materials, carbon steel materials and alloy steel materials. The cutting-stirring friction welding composite processing device for a floating double-shaft-shoulder double-stirring needle and the manufacture method of the cutting-stirring friction welding composite processing device reduce manufacture procedures, save processing cost, have the advantages of being high in efficiency, excellent in quality, high in stability and saving in energy, break through limitation of conventional machining technology, form a new method and a new thought for machinery processing, and have wide application prospects in industries of heating, air conditioners, ice manufacture, freshness keeping, medicine preparation, construction, aquatic products and foods.

Magnetron discharges are pulse-operated to avoid the so-called "arcing". In the case of magnetron discharges from alternating current-fed magnetrons, the process is limited to the minor power of the energy supply because of the load-carrying capacity of the required electric components. When the magnetron discharges are fed by direct current, their effectiveness deteriorates because of the deposition of layers on the anode surfaces. The new process should enable a high supply power and prevent arcing. In magnetron discharges with at least two magnetron electrodes, the energy is supplied in such a way that at least one magnetron electrode is a cathode or anode and a number n1 of direct current pulses of said polarity is supplied. The poles of at least one magnetron electrode are then reversed and a number n2 of direct currents of this polarity are supplied. The process is carried on in this manner, the frequency of the direct current pulses being higher than that of the polarity reversals. The energy supply effectiveness is thus improved. This process and system enable the production of layers having the most different properties, for example for the glass, packaging, electronic, and machine construction industries.

The invention discloses a device and a method for laser shot blasting reinforcement of a hard and brittle material, and relates to the field of mechanical manufacture of hard and brittle material processing and laser application. The device comprises a laser aid heating system, a laser shot blasting reinforcement system, a workpiece clamp system, a computer numerical control system, a measurement feedback system and a protective gas circulating system. The method comprises a laser aid heating stage and a laser shot blasting reinforcement stage, namely performing aid heating treatment on the area to be reinforced by adopting high-power continuous laser, wherein for most metal materials, the plastic performance is improved along with the rise of temperature; and after the temperature of the heating area reaches a predetermined heating temperature, implementing laser shot blasting reinforcement treatment by adopting high-power pulse laser. The device and the method can implement the laser shot blasting reinforcement on the hard and brittle material so as to broaden the application range of the laser shot blasting reinforcement technology, and meanwhile compound the advantages of continuous laser and pulse laser so as to broaden the application field and the application prospect of laser manufacture.

The invention belongs to the ferronickel base martensite precipitation-hardening alloy technical field, in particular relates to a low carbon martensite aged stainless steel with high strength high toughness and high decay resistance performances, novel material mainly applied to the important fields of aviation, space flight, machinery manufacturing and atomic energy. The steel comprises the following components by weight percent: 0.08-0.15% of C, 11.0-12.0% of Cr, 4.0-5.0% of Ni, 0.2-1.0% of Ti, 0.5-1.0% of Mo, 2.0-3.0% of Cu, 2.0-3.0% of Co, 0.1-0.5% of Nb, 0.5-1.5% of Mn, 0.5-1.5% of Si, less than 0.01% of N, less than 0.01% of V, less than 0.01% of Al and balance of Fe. The invention can obtain high strength high toughness and decay resistance performances by appropriate collocation of five precipitation strength elements of Ni, Ti, Mo, Cu and Nb.

The invention discloses cutting-stirring friction-welding combined machining equipment and a manufacturing method thereof. The cutting-stirring friction-welding combined machining equipment integrates a milling system or a cutting system, a stirring friction-welding system, a forced cooling system, a gas protection system, a temperature sensing system, a pressure sensing system, a milling liquid supply system and a non-sensing system. The invention provides a united or combined machining device which can carry out milling or cutting and stirring friction-welding in parallel simultaneously and a method thereof. The cutting-stirring friction-welding combined machining equipment has the functions of temperature control, gas protection, pressure detection, cooling liquid production, milling head replacement and dual-shaft shoulder self-supporting. According to the manufacturing method of the cutting-stirring friction-welding combined machining equipment, the manufacturing processes are reduced and the machining cost is saved. The limitation of the conventional mechanical machining technology is broken through, and a new method and a new idea about the mechanical manufacturing and machining are formed. The cutting-stirring friction-welding combined machining equipment and the manufacturing method in the invention have wide engineering applications to the heating industry, the air conditioning industry, the ice making industry, the freshness retaining industry, the pharmacy industry, the construction industry, the aquatic product industry and the food industry.

The invention discloses an angle-controllable power differential omnidirectional wheel, and a control method and an omnidirectional moving platform thereof, and relates to the technical field of machinery manufacturing and assembly and intelligent control. The angle-controllable power differential omnidirectional wheel comprises a wheel frame main body, a rotary support bearing, two wheels, two elastic shaft couplers, two speed reducing motors, a gyroscope and a controller. According to the control method of the omnidirectional wheel, the rotating speed of two wheels is subjected to closed loop control so that the practical azimuthal angle of the omnidirectional wheel tracks the expected value; the flexible steering is realized; the cost is low; the omnidirectional moving requirements of the heavy equipment or cargo transportation can be met. The omnidirectional platform comprises the omnidirectional wheel and a platform bottom plate connected with the omnidirectional wheel through the rotary support bearing; the non-steering flexible movement of the platform bottom plate is realized.