A processing method for ice-fixed metal honeycomb workpiece

Abstract

The invention provides an ice immobilization machining method for a metal honeycomb workpiece, belongs to the field of machining technological methods and relates to a machine tool fixture device and a machining method for immobilizing a metal honeycomb material through an ice immobilization manner to achieve ultralow-temperature cutting. The method comprises the steps that after metal honeycomb holes arranged in a metal honeycomb ice immobilizing fixture are filled with low-temperature pure water or cutting liquid, the metal honeycomb ice immobilizing fixture is arranged in an adjustable refrigerating testing cabinet, and the freezing temperature and the refrigerating time are set; and then the metal honeycomb ice immobilizing fixture is clamped to a machine tool worktable, metal honeycombs are machined through a liquid nitrogen internal spraying cutter, and the freezing state is maintained through liquid nitrogen external spraying. The method achieves the purpose of clamping of the metal honeycomb workpiece difficult to machine, the freezing temperature of the pure water or the cutting liquid and the temperature maintaining degree are effectively controlled, the machining immobilizing effect can be better, and the cutting precision is improved; and the operation of the method is convenient, the immobilizing effect is stable, the machining efficiency is high, and the machining effect is good.

Description

technical field

[0001] The invention belongs to the field of mechanical processing techniques, and relates to a machine tool tooling device and a processing method for holding metal honeycomb materials in an ice-holding manner to realize ultra-low temperature cutting. Background technique

[0002] At present, metal honeycomb materials are widely used in the fields of aerospace, aviation and shipbuilding. Good adaptability and other characteristics. The honeycomb is a thin-walled porous structure, the wall thickness is generally less than 0.1mm, and the side length of the cell is generally less than 10mm, so that the honeycomb has a high strength along the cell axis, and the in-plane radial equivalent strength is very small. It is easy to deform under the action of radial force, so the traditional method of clamping solid workpieces cannot be used in machining to achieve clamping. Usually, during honeycomb CNC machining, especially during plane milling, the metal honeycomb ...

Examples

Embodiment Construction

[0017] The specific implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and technical solutions.

[0018] The metal honeycomb workpiece ice holding method is based on the principle that the radial strength of the metal honeycomb material is low, and the honeycomb hole is filled with low-temperature pure ice to increase the strength of the material.

[0019] figure 1 , figure 2 Top view and front view of metal honeycomb ice holding fixture diagram. The installation operation of the metal honeycomb workpiece is as follows: press the support plate 8 into the bottom groove of the hollow clamp body 1; install the ice-fixing bolts 9 into the bolt holes on the front and rear inner walls of the hollow clamp body 1, 6 in total. The metal honeycomb workpiece 7 is placed on the support plate 8, and the adjacent two sides of the metal honeycomb workpiece 7 are connected with the ice-fixing bolts 9 and figure 2 The mi...

technical field

[0001] The invention belongs to the field of mechanical processing techniques, and relates to a machine tool tooling device and a processing method for holding metal honeycomb materials in an ice-holding manner to realize ultra-low temperature cutting. Background technique

[0002] At present, metal honeycomb materials are widely used in the fields of aerospace, aviation and shipbuilding. Good adaptability and other characteristics. The honeycomb is a thin-walled porous structure, the wall thickness is generally less than 0.1mm, and the side length of the cell is generally less than 10mm, so that the honeycomb has a high strength along the cell axis, and the in-plane radial equivalent strength is very small. It is easy to deform under the action of radial force, so the traditional method of clamping solid workpieces cannot be used in machining to achieve clamping. Usually, during honeycomb CNC machining, especially during plane milling, the metal honeycomb ...

Examples

Embodiment Construction

[0017] The specific implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and technical solutions.

[0018] The metal honeycomb workpiece ice holding method is based on the principle that the radial strength of the metal honeycomb material is low, and the honeycomb hole is filled with low-temperature pure ice to increase the strength of the material.

[0019] figure 1 , figure 2 Top view and front view of metal honeycomb ice holding fixture diagram. The installation operation of the metal honeycomb workpiece is as follows: press the support plate 8 into the bottom groove of the hollow clamp body 1; install the ice-fixing bolts 9 into the bolt holes on the front and rear inner walls of the hollow clamp body 1, 6 in total. The metal honeycomb workpiece 7 is placed on the support plate 8, and the adjacent two sides of the metal honeycomb workpiece 7 are connected with the ice-fixing bolts 9 and figure 2 The mi...

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