Mould having bionic non smooth surface

A non-smooth surface and mold technology, applied in the field of molds with bionic non-smooth surfaces, to achieve the effects of improving wear resistance, reducing bonding force, and improving thermal fatigue resistance

Inactive Publication Date: 2005-03-23
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, at home and abroad, improving the wear resistance, thermal fatigue resistance, and viscosity reduction performance of the mold to increase the life of the mold has always been one of the most concerned

Method used

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  • Mould having bionic non smooth surface
  • Mould having bionic non smooth surface
  • Mould having bionic non smooth surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Manufacture of die-casting molds for auto parts covers with spherical crown convex hull non-smooth shape on the surface.

[0047] refer to figure 1 , the non-smooth working surface of the mold is distributed with spherical crown convex hull units u in regular lattice on the surface of the base m, the diameter d of the spherical crown bottom circle is 0.02mm, and the height h of the spherical crown is 0.01mm. The distance g between spherical crown units is 0.03mm, and the mold material is H11 mold steel. Under the condition of die-casting AlSi9Cu3 aluminum alloy, the service life of the mold with bionic non-smooth surface is 1.7 times longer than that of the smooth surface mold with the same base material. The cost of processing biomimetic non-smooth surfaces is only 17% higher.

Embodiment 2

[0049] Fabrication of die-casting molds for automotive parts covers with raised mesh non-smooth morphology on the surface.

[0050] refer to figure 2 , the non-smooth working surface of the mold is distributed with raised stripe units u in grid form on the surface of the substrate m, the stripe width w is 0.02mm, the stripe height h is 0.05mm, and the stripe unit spacing g is 0.03mm, the mold material is H11 mold steel, under the condition of die-casting AlSi9Cu3 aluminum alloy, the service life of the mold with bionic non-smooth surface is 1.8 times higher than that of the smooth surface mold of the same base material, and the cost of processing bionic non-smooth surface is increased by 17% .

Embodiment 3

[0052] Fabrication of die-casting molds for automotive parts covers with raised mesh non-smooth morphology on the surface.

[0053] refer to image 3 , the non-smooth working surface of the mold is distributed with raised stripe units u in grid form on the surface of the substrate m, the stripe width w is 0.1mm, the stripe height h is 0.2mm, and the stripe unit spacing g is 0.8mm, the mold material is H11 mold steel, under the condition of die-casting AlSi9Cu3 aluminum alloy, the service life of the mold with bionic non-smooth surface is 1.5 times higher than that of the smooth surface mold of the same base material, and the cost of processing bionic non-smooth surface is increased by 15% .

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Abstract

A die with bionic non-smooth surface for high antiwear and thermal fatige resistant properties and easy demoulding features that the concave and convex unit bodies with the shapes of spherical crown, crater, or parelles or lattic strips are arranged on its working surface.

Description

technical field [0001] The invention relates to a wear-resistant, heat-fatigue-resistant cold and hot-working mold for forming various mechanical parts, in particular to a mold with a bionic non-smooth surface. Background technique [0002] In modern industrial production, 60%-90% of industrial products need to be processed by molds. The mold industry has become an important basis for industrial development. The development and production of many new products rely on mold production to a large extent, especially for automobiles. , light industry, electronics, aviation and other industries are particularly prominent. As for the machinery industry, which is the basis of the manufacturing industry, according to the forecast of the International Production Technology Association, 75% of the rough machining and 50% of the finishing of the parts of the machinery manufacturing industry in the 21st century will be completed by molds. Molds are known as "the driving force for enteri...

Claims

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Application Information

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IPC IPC(8): B23P15/24
Inventor 任露泉周宏张志辉宋起飞单宏宇陈莉邱小明韩志武
Owner JILIN UNIV
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