Cutting-stirring friction welding composite processing device for floating double-shaft-shoulder double-stirring needle and manufacture method thereof

Abstract

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.

Description

technical field [0001] The invention relates to the technical field of mechanical manufacturing parts processing, in particular to a cutting-friction-stir welding combined processing equipment based on floating double-shaft shoulders and double-stirring needles and a manufacturing method thereof. Background technique [0002] At present, for the manufacture of structural parts with internal closed cavities, the traditional manufacturing methods mainly include the use of profile welding, plate welding and bulging processing, or the entire workpiece is cut and then sealed with a cover plate. These traditional processing methods have many steps, long manufacturing cycle, high manufacturing cost, and the workpiece is easily deformed, which affects the strength of the structural part. [0003] In 1991, W.M.Thomas of the British Welding Institute (TWI) invented the friction stir welding technology. This new welding technology derived from the mechanical cold processing manufacturi...

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Problems solved by technology

[0005] However, for parts with an internal closed cavity structure, such as condensing plates, in addition to split processing methods, traditional friction stir welding still lacks effective processing methods; in addition, friction stir welding is required in some special processing processes The welding equipment provides a large welding force, and at the same time requires strict clamping of the workpiece to be processed, which brings difficulties to the design of some special structure friction stir welding fixtures

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