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Axial ultrasonic auxiliary pressing device and pressing method

An ultrasonic-assisted, axial technology, used in presses, manufacturing tools, presses for material forming, etc., can solve the problems of poor ultrasonic vibration efficiency and ultrasonic vibration attenuation, and achieve the benefits of pressing, reducing the pressing force, The effect of optimizing the structure

Active Publication Date: 2021-08-03
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for circumferential ultrasonic assisted machining, the female mold will cause the attenuation of ultrasonic vibration, making the efficiency of ultrasonic vibration poor

Method used

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  • Axial ultrasonic auxiliary pressing device and pressing method
  • Axial ultrasonic auxiliary pressing device and pressing method
  • Axial ultrasonic auxiliary pressing device and pressing method

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Embodiment Construction

[0040] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0041] Such as Figure 1-6 As shown, the axial ultrasonic auxiliary pressing device of the present invention includes a hydraulic mold and an ultrasonic vibrating table; The ultrasonic vibrating table includes an upper cover plate 6, a support plate 7, an upper cover plate connection bolt 8, a support column 9, a base plate 10, a horn 11, an ultrasonic transducer 12, a base plate connection bolt 13, an ultrasonic generator 14 .

[0042] For the hydraulic mold part, the upper pressing head 1 is placed above the center hole of the female mold 4, the lower pressing head 5 is placed below the hole, and the blade blank 3 is located between the two. The core column 2 is placed in the hole at the center of the upper and lower pressing heads, and is used to shape the shape of the counterbore of the blade. For the part of the ultrasonic vibrating table, the lower p...

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Abstract

The invention belongs to the field of material forming, in particular to an axial ultrasonic auxiliary pressing device and a pressing method. The pressing device includes a mould: an upper indenter, a lower indenter and a female mold; an ultrasonic vibrating table: arranged directly below the lower indenter, the axis of the ultrasonic vibrating table coincides with the axis of the mould, and the ultrasonic vibrating table includes a support plate, a supporting column, a variable The horn and the ultrasonic transducer; the lower end of the horn is connected to the ultrasonic transducer, the upper end is connected to the lower pressure head, and the middle part of the horn is provided with a ring-shaped convex edge, which is clamped in the groove of the support plate. The support column is arranged under the support plate, both the support column and the support plate are hollow parts, and the ultrasonic transducer and the lower part of the horn are arranged in the cavity of the support column and the support plate. In this application, the vibration direction of the axial ultrasonic wave is on the same line as the pressing direction of the hydraulic mold, and the vibration-assisted pressing of the axial ultrasonic wave is better realized by using the outer circumference of the horn for pressure bearing.

Description

technical field [0001] The invention belongs to the field of material forming, in particular to an axial ultrasonic auxiliary pressing device and a pressing method. Background technique [0002] Unidirectional compression molding technology is the simplest and most intuitive molding method. Pour the prepared powder into a mold of a certain shape, and press the powder into a green body with the help of external pressure on the plug. Due to its low cost, convenient maintenance, and simple equipment, process and molds, the one-way press molding technology has been widely used in traditional blade production. Due to the limitation of powder deformation and densification by the friction of the mold during unidirectional compression molding, the stress field in the molded part is almost always inhomogeneous. Due to its complex structure and blade shape, the complex tool further aggravates the uneven density distribution of the green body. This non-uniformity in density distribu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B30B11/02B30B15/02
CPCB30B11/027B30B15/022
Inventor 殷增斌洪东波叶佳冬朱智勇
Owner NANJING UNIV OF SCI & TECH
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