Method for relieving milling deformation of installation edge of casing
A technology of milling and milling cutters, which is applied in the direction of milling machine equipment, milling machine equipment details, metal processing equipment, etc., can solve problems such as deformation and tilting of parts installation edges, affecting the processing accuracy and assembly quality of parts, and the high precision size of the casing cannot be guaranteed, etc. , to achieve the effect of reducing the spare parts
Active Publication Date: 2016-03-09
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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Problems solved by technology
[0002] The deformation of thin-walled casings has always been the biggest problem in casing processing, and the high-precision dimensions of many casings cannot be guaranteed due to the deformation of casing parts
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[0013] Such as image 3 As shown, a method to reduce the milling deformation of the casing installation side, firstly use a drill to drill a hole 3 in the area 2 to be processed on the casing installation side 1, remove part of the margin, and then use a milling cutter to process the casing installation side 1 The area to be processed 2. The drill bit used is a small diameter drill bit.
[0014] Before using this method, the warping deformation of the part mounting side can reach up to 0.2 mm, and after using this method, the warping deformation of the part mounting side is 0.03 mm, which greatly improves the machining accuracy of the axial dimension of the part.
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The invention relates to a machining method, in particular to a method for relieving the milling deformation of an installation edge of a casing. According to the technical scheme, the method for relieving milling deformation of the installation edge of the casing includes the steps that firstly, drilling is conducted on a to-be-machined area of the installation edge of the casing through a drill bit; part of margins are removed; and the to-be-machined area of the installation edge of the casing is machined through a milling cutter. According to the method for relieving milling deformation of the installation edge of the casing, the milling manner of a notch of the installation edge of the casing is optimized, and therefore warping deformation of the installation edge of the casing is relieved and even removed, and the delivery quality of parts of the casing is improved.
Description
technical field [0001] The invention relates to a mechanical processing method, in particular to a method for specifically reducing the milling deformation of the mounting edge of the casing. Background technique [0002] The deformation of thin-walled casings has always been the biggest problem in casing processing, and the high-precision dimensions of many casings cannot be guaranteed due to the deformation of casing parts. There are many reasons for the deformation of the casing parts, but all of them are caused by the uneven internal stress of the parts after the parts are stressed during the processing process, which leads to the deformation of the parts. [0003] The mounting edge of the casing parts is often designed with a notch structure, which is used to reduce the weight of the engine. This notch structure is formed by milling. After processing, it is found that the mounting edge of the casing is warped and the flatness is increased, which affects the delivery qua...
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IPC IPC(8): B23C3/00
Inventor 杨平贾琳李莹崔晶
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION