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Ultrasonic assisted indexable end mill blade one-way pressing device

An ultrasonic-assisted, one-way pressing technology, applied in presses, manufacturing tools, material forming presses, etc., can solve the complex shape of indexable end mill blades, aggravate the uneven density distribution of green parts, and make green parts Problems such as uneven density distribution, to achieve the effect of uniform force, easy removal, and uniform ultrasonic field

Active Publication Date: 2019-08-09
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to its complex structure and blade shape, the complex tool further aggravates the unevenness of the green body density distribution
This non-uniform density distribution will lead to inconsistent shrinkage of the blade during sintering, which is more likely to cause distortion and cracking of the blade, impairing the performance of the blade
[0005] Due to the complex shape of the indexable end mill blade, the flow performance of the powder during the pressing process is poor, resulting in the low density of the edge part of the green body of the end mill blade and the uneven overall density distribution of the green body

Method used

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  • Ultrasonic assisted indexable end mill blade one-way pressing device
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  • Ultrasonic assisted indexable end mill blade one-way pressing device

Examples

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Embodiment Construction

[0043] Such as Figure 1-8 As shown, an ultrasonic assisted indexable milling cutter blade unidirectional pressing device includes an ultrasonic assisted unidirectional pressing mold and an ultrasonic generator 8; the ultrasonic unidirectional pressing mold includes an ultrasonic transducer 1, an upper pressing head 2, Mold 3, transducer fixing frame 4, mold support block 5, base connecting bolt 6, base 7, core post 9, milling cutter blade blank 10, and pressing head 11.

[0044] Such as Figure 8As shown, the head of the ultrasonic transducer 1 is threaded, and is fastened to the mold 3 through threaded connection. The six ultrasonic transducers 1 are centrally distributed and evenly distributed on the six corners of the mold 3, and the included angle between adjacent ultrasonic transducers 1 is 60 degrees. Wherein, three non-adjacent ultrasonic transducers 1 are placed on the opening of the transducer fixing frame 4 for fixing the horizontal displacement of the mould. The...

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Abstract

The invention belongs to the field of ultrasonic assisted molding and particularly relates to an ultrasonic assisted indexable end mill blade one-way pressing device. A one-way pressing mold comprisesultrasonic transducers, an upper pressing head, a mold body, a transducer fixing frame, a mold supporting block, a base connecting bolt, a base, a core column, a milling cutter blade blank and a lower pressing head. The mold supporting block is placed flat on the center of the base, the mold body is placed above the mold supporting block, and the ultrasonic transducers are connected to the outerside of the mold body. The mold body is of an integral structure, and a mold hole is formed in the mold body in an up-down penetrating manner. The lower pressing head is arranged at the lower part ofthe mold hole. The upper pressing head is arranged on the upper part of the mold hole. A mold cavity after the upper pressing head and the lower pressing head are clamped is matched with the milling cutter blade blank in shape, and during the pressing process, the mold supporting block bears the pressure during the pressing process. By the adoption of the pressing device, ultrasonic assisted pressing is adopted, the ultrasonic vibration can promote the movement rearrangement of tool blanks and reduce the pressing forming force, the pressing forming of the blanks is facilitated, and the densityof the blanks is increased.

Description

technical field [0001] The invention belongs to the field of ultrasonic-assisted forming, in particular to an ultrasonic-assisted one-way pressing device for indexable end mill blades. 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. [0003] Ultrasonic assisted pressing technology is a kind of unidirectional or multidirectional complex ultrasonic external field applied to the outer p...

Claims

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Application Information

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IPC IPC(8): B30B11/02B30B12/00B30B15/00
CPCB30B11/02B30B12/00B30B15/0005
Inventor 殷增斌洪东波叶佳冬朱智勇
Owner NANJING UNIV OF SCI & TECH
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