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Microstructure hard alloy die and hot-pressing micro molding manufacturing method thereof

A technology of hard alloy and manufacturing method, which is applied in the direction of manufacturing tools, glass forming, glass manufacturing equipment, etc., can solve the problems of expensive equipment, short life, low mechanical strength of molds, etc., and achieve low equipment cost, smooth surface, and enhanced The effect of energy saving and emission reduction effect

Active Publication Date: 2016-04-27
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the equipment is expensive, the mechanical strength of the mold is low, and the life is short

Method used

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  • Microstructure hard alloy die and hot-pressing micro molding manufacturing method thereof
  • Microstructure hard alloy die and hot-pressing micro molding manufacturing method thereof
  • Microstructure hard alloy die and hot-pressing micro molding manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 1 and image 3 As shown, a microstructure hard alloy mold includes a hard alloy mold core with micro grooves, and the hard alloy mold core with micro grooves is a hard alloy mold core with curved micro grooves on the processing surface. A quality alloy mold core 1, the micro-groove array is arranged on the curved surface in parallel, the radius 5 of the curved surface is R=400mm, the groove angle 2 of the micro-groove array is θ=70°, the groove The groove depth 3 is h=0.4mm, and the groove interval 4 is a=0.7mm.

[0040] The microgroove array is used to form the microstructure on the finished product after hot pressing, wherein the processed surface of the hard alloy mold core 1 with curved microgrooves is a curved surface, the purpose of which is to utilize the good optical properties of quartz glass according to research. Performance, through the curved surface micro-groove mold core imprinted on the quartz glass to form a concave micro-groove quartz ...

Embodiment 2

[0042] Such as figure 2 and Figure 4 As shown, a microstructure hard alloy mold includes a hard alloy mold core with micro grooves, and the hard alloy mold core with micro grooves is a hard alloy mold core with flat micro grooves on the processing surface Alloy mold core (15), the micro-groove array is arranged in parallel on the plane, the groove angle 2 of the micro-groove array is θ=50°, and the groove depth 3 is h=0.6mm , the groove interval 4 is a=0.9mm;

[0043] The micro-groove array of the above-mentioned embodiment is processed by the diamond grinding wheel after trimming. Specifically, when processing the curved-surface micro-groove array, firstly, the cemented carbide with curved surface micro-groove is ground into a predetermined size and surface roughness. The mold core 1 is clamped on the vise, and the vise is fixed on the magnetic platform. After adjusting the position, the trimmed coarse-grained diamond grinding wheel is used to pass the curved surface form...

Embodiment 3

[0046] Such as Figure 6 and Figure 7 and Figure 8 As shown, a kind of hot-pressing microforming manufacturing method as described microstructure cemented carbide mould, comprises steps:

[0047] 1) Install the hard alloy mold core 1 with curved surface micro-grooves or the cemented carbide mold core 15 with flat micro-grooves on the upper clamping mold 6 of the thermocompression forming machine through the upper template 12, and pass through the lower template 10 Fix the quartz glass workpiece 8 on the lower clamping mold 7 of the thermocompression forming machine;

[0048] 2) Heat the cemented carbide mold core 1 with curved surface micro-grooves or the cemented carbide mold core 15 with plane micro-grooves to 700°~800° according to the preset temperature parameters of the upper template 12, the predetermined temperature Value is 750 °, and this is realized by template temperature control module 13 on the hot press;

[0049] 3) Clamp the upper and lower molds of the th...

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Abstract

The present invention discloses a microstructure hard alloy die comprising a hard alloy die core with micro grooves, the working surface of the hard alloy die core with the micro grooves is provided parallelly with micro groove arrays, the hard alloy die core with the micro grooves is a hard alloy die core with curved-surface micro grooves, wherein the hard alloy die core has the curved working surface, and the micro groove arrays are parallelly arranged on the curved working surface, or, the hard alloy die core with the micro grooves is a hard alloy die core with planar micro grooves, wherein the hard alloy die core has the planar working surface, and the micro groove arrays are parallelly arranged on the planar working surface. The present invention also discloses a hot-pressing micro molding manufacturing method of the microstructure hard alloy die, a workpiece produced by the method is smooth in the microstructure surface, high in precision, simple in process and long in life, hot-pressing forming pressure load is reduced, the molding accuracy and consistency of the microstructure are improved, large-scale practicality of a quartz glass optical element can be promoted, manufacturing cost is reduced, energy is conserved, and emission is reduced.

Description

technical field [0001] The invention relates to a micro-mold for hot-press forming and the technical field of micro-machining, in particular to a micro-structure hard alloy die and a manufacturing method thereof for hot-press micro-forming. Background technique [0002] Nowadays, quartz glass materials are widely used because the microstructure design on the surface can play a good role in optical performance. However, because it is a hard and brittle material, only mechanical processing methods need to be processed in the plastic domain to ensure its transparency and mirror effect. However, The processing time in the plastic domain is extremely long, which does not meet the needs of the actual production of quartz glass optical components. There is an urgent need for a process to promote the performance of quartz glass optical components. As a micro-forming process, hot-press micro-forming has a series of advantages such as product material, geometric shape and size adaptab...

Claims

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Application Information

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IPC IPC(8): C03B20/00
CPCC03B20/00
Inventor 鲁艳军李烈军郭锐斌周超兰谢晋吴梦泽
Owner SOUTH CHINA UNIV OF TECH
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