Hollow blade forming method and forming device
A hollow blade and blade technology, used in furnaces, heat treatment equipment, heat treatment furnaces, etc., can solve the problems of poor blade performance and complex process flow, achieve simple structure, improve production yield, and reduce work flow and time costs. Effect
Active Publication Date: 2017-04-12
苏州明和行新材料科技有限公司
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0008] In order to solve at least one of the above-mentioned technical problems, the purpose of the present invention is to provide a hollow blade forming method and forming device to solve the problems of poor blade performance and complicated process flow caused by the depression of the hollow blade panel in the prior art
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0045] The present invention will be described in detail below in conjunction with specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional changes made by those skilled in the art according to these embodiments are included in the protection scope of the present invention.
[0046] see figure 1 , figure 1 It is a flow chart of the molding method of the hollow vane which concerns on one embodiment of this invention.
[0047] A method for forming a hollow blade provided by an embodiment of the present invention includes the steps of:
[0048] heating the hollow blade to a first temperature;
[0049] Fitting said hollow blades into the cavity of a fully closed mould;
[0050] Filling the cavity of the hollow blade with gas until the outer surface of the hollow blade completely contacts the inner wall of the cavity;
[0051] stop heating the hollow blade, and depressurize...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a forming method and device for a hollow blade. The forming method includes the steps that the hollow blade is heated to a first temperature; the hollow blade is fitted in a mold cavity of a fully-closed mold; a blade cavity of the hollow blade is filled with gas till the outer surface of the hollow blade is in full contact with the inner side wall of the mold cavity; heating of the hollow blade is stopped, and pressure relief is conducted on the blade cavity; and the formed hollow blade is taken out. According to the forming method and device for the hollow blade, a hollow blade with a recessed panel can be repaired again, damage to the panel of the hollow blade in a traditional repairing mode is avoided, and the repaired hollow blade can meet the preset performance requirement and the preset curved surface requirement to the greatest extent; meanwhile, the forming method and device can be used for forming a hollow blade blank into a hollow blade finished product without the panel recessing defect at a time, the structure is simple, working processes and time cost are reduced greatly, and the production yield is increased.
Description
technical field [0001] The invention relates to a forming method and a forming device of a hollow blade, belonging to the technical field of metal machining technology. Background technique [0002] The application of wide-chord hollow fan blades with two-layer structure is to increase the thrust-to-weight ratio and improve the performance of aero-engines (increase compressor turbulence margin, improve efficiency, enhance the ability to resist foreign object damage, increase engine thrust, reduce the number of blades and effective means of reducing weight). The hollow blade of the two-layer structure is composed of two parts: the blade pot and the blade back. At present, the forming method is generally to gradually form the finished blade through superplastic forming, laser welding and other technologies in domestic and foreign research. [0003] There are various forming defects in the forming process of the above-mentioned hollow blade, among which, panel depression is th...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C21D9/00C21D1/74C21D8/00
Inventor 陈明和谢兰生张涛王伟锋
Owner 苏州明和行新材料科技有限公司