Turning tooling and method for large thin-walled conical aluminum alloy parts

An aluminum alloy and cone technology, applied in metal processing equipment, metal processing mechanical parts, manufacturing tools, etc., can solve the problems of difficult to control wall thickness, inconsistent cutting depth, affecting processing efficiency, etc., to reduce processing costs and ensure processing. Quality, the effect of improving processing efficiency

CN110421368BActive Publication Date: 2020-11-20SHANGHAI AEROSPACE EQUIP MFG GENERAL FACTORY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2020-11-20

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Abstract

The invention relates to a turning tool and turning method of a large thin-wall conical aluminum alloy part, and belongs to the field of machining of large thin-wall conical aluminum alloy forgings. According to a fixture for the large thin-wall conical aluminum alloy forgings, a supporting plate is used for fixing the outer walls of the thin-wall conical aluminum alloy forgings, the machining deformation in the machining process is controlled, the uniformity of the wall thickness of final products is guaranteed, the machining efficiency is improved, and the machining quality is guaranteed. Bychanging the type of the supporting plate and a cushion block, the problem that machining fixtures for thin-wall conical aluminum alloy forgings with different sizes are not universal is solved, andthe machining cost is reduced.
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Description

technical field

[0001] The invention relates to a tooling and method for turning large-scale thin-walled conical aluminum alloy parts, belonging to the field of processing large-scale thin-walled conical aluminum alloy forgings, and in particular to a turning method for large-scale thin-walled conical aluminum alloy parts. The inner diameter of the aluminum alloy part is 1500-4000mm, and the thin wall means that the thickness-to-diameter ratio is 0.01-0.001. Background technique

[0002] The wall thickness of common large thin-walled aluminum alloy parts is only 0.5% to 0.3% of the diameter, and its own rigidity is poor. It is easy to vibrate under the action of cutting force during the overall turning process. At the same time, the release of cutting stress causes the parts to deform. Inconsistent depth of cut for each cut. Under the influence of this dual effect, the overall roundness of the part becomes poor, and the wall thickness is difficult to control, which is not c...

Examples

Embodiment

[0048] The supporting plate 1 described in the embodiment of the present invention is closely attached to the outer surface of the thin-walled conical aluminum alloy forging 2; Wall pre-drilled fixing holes for bolt support.

[0049] The invention provides a turning processing method of a large thin-walled conical aluminum alloy part. A new processing method is adopted to meet the thin-walled aluminum alloy forgings of different sizes, control the deformation of the parts during the processing, and ensure the consistency of the final processing wall thickness.

[0050] In order to achieve the above-mentioned purpose of the invention, the technical solution adopted by the present invention to solve the technical problem is to provide a turning method for large-scale thin-walled conical aluminum alloy parts, including:

[0051] Step 1. According to the size of the small end of the part, turn the reference bottom surface and the arc surface of the limit step on the surface of th...