Cover plate for carbide cutting
A technology of cemented carbide and cover plate, which is applied in the field of cemented carbide cutting, can solve the problems of short drilling life of the drill bit, decrease in the quality of the machined hole, and easily smaller inner diameter, etc., and achieve improved thermal stability, high and low temperature resistance and high temperature resistance. Optimum corrosion performance and improved lubricating performance
Active Publication Date: 2020-09-15
SUZHOU GUANGXING MOLD
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AI Technical Summary
Problems solved by technology
In order to connect cemented carbide materials with bolts, it is necessary to use a drill to drill holes in these structural materials that constitute the aircraft body. However, even if a drill dedicated to cemented carbide is used, the drilling life of the drill is short, and ordinary drills are used. , the drilling life of the drill bit is extremely short
In addition, as the number of processed holes increases, the edge of the drill is worn and the quality of the processed holes decreases.
Specifically, the inner diameter of the processed hole tends to be small, and burrs tend to occur at the exit where the drill penetrates.
Method used
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Embodiment Construction
[0017] The present invention will be further described in detail below in conjunction with the embodiments, so that those skilled in the art can implement it with reference to the description.
[0018] This case proposes an embodiment of a cemented carbide cutting cover plate, including an antistatic layer, a metal layer, and a resin sheet between the antistatic layer and the metal layer;
[0019] Wherein, the resin sheet layer comprises the following materials by weight:
[0020]
[0021] Melamine resin has high chemical activity, high thermal stability, good hardness and wear resistance; its lubricating performance, high and low temperature resistance and corrosion resistance can be improved by adding fluorine-containing polymer; material, improve its impact resistance; improve its toughness by adding citric acid ester.
[0022] As another embodiment of the present case, wherein the lubricant includes 30-35 wt% stearamide, 40-50 wt% chitosan and 15-25 wt% vinyltriethoxys...
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Abstract
The invention relates to a cover plate for hard alloy cutting. The cover plate comprises an antistatic layer, a metal layer and a resin sheet layer arranged between the antistatic layer and the metallayer. The resin sheet layer is prepared from, by weight, the following materials: 25-30 parts of melamine resin, 15-20 parts of fluorine-containing polymer, 6-12 parts of polyacrylic acid grafted polyoxyethylene copolymer, 5-7 parts of citrate, 8-16 parts of lubricating agent and 3-5 parts of heat stabilizer. The cover plate for hard alloy cutting comprises the antistatic layer, the metal layer and the resin sheet layer arranged between the antistatic layer and the metal layer. During cutting machining, the cover plate is arranged on the drill bit entering face of a cut-machined material, theinner wall roughness of a hole becomes low, and the abrasion amount of a drill bit also becomes small.
Description
technical field [0001] The invention relates to the technical field of cemented carbide cutting, in particular to a cover plate for cemented carbide cutting. Background technique [0002] In mold processing, when cemented carbide is fixed to the structural body of mechanical equipment parts, etc., it is necessary to perform cutting processing, especially the drilling process of opening a plurality of holes in the cemented carbide for passing through the connecting elements; the body of the aircraft The main body of structural materials (structural materials) is hard alloy materials, and aluminum alloys occupy the majority; in addition, they are used as heat-resistant alloys in parts that may reach higher temperatures in the body structure, such as jet exhaust parts or near reburning devices. Titanium alloy, stainless steel, etc. Furthermore, as the speed of aircraft increases in the future, the strength of existing aluminum alloys will decrease due to aerodynamic heating. ...
Claims
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IPC IPC(8): B32B27/02B32B27/12B32B27/20B32B27/42B32B15/098B32B15/20B32B9/00B32B9/04
CPCB32B5/02B32B9/047B32B15/098B32B15/20B32B27/12B32B27/20B32B27/42B32B2262/0261B32B2262/10B32B2307/306B32B2307/558B32B2307/752
Inventor 马广兴
Owner SUZHOU GUANGXING MOLD