Optimal design of the spiral type of collector die for dry powder compaction

Edgar, Dvilis; Хасанов, О. Л.; Prakorb, Chartpuk; Sokolov, V. M.

doi:10.1109/ifost.2013.6616979

Cited by 1 publication

(1 citation statement)

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“…The friction reduction can be applied in many ways, such as the design of a low ratio between the height and the diameter [4], [5]. Much effort has been invested to design the mold to achieve the consistent density throughout the volume without the use of lubricant and with the single core compression [6], [7]. The use of ultrasonic waves in the forming process [3] is beneficial and produces good results for the friction can be reduced without compression [3], [8].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Stress Distribution for Powder Compression Molding by Finite Element Method

Prakorb

Chaimahapuk

2019

AMM

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The ultrasonic mold was designed for the ceramic powder compression. CAD and CAE were used in the design to analyze the mold strength and its natural frequency. The study of stress distribution and compression in upper and lower punch, mold body and waveguide comparison of stresses was analyzed by FEA experiments under maximum compression at 50,000 N to validate the results of both methods and the mold natural frequency. The difference between FEA and experimental analysis was 3-7%, acceptable. The redesign results in a cylindrical mold body with the outer diameter of 80 mm, the height of 100 mm, and the upper punch of 125 mm in length. The six sides are 26 mm of the high waveguide with 100 mm height. The internal and external diameters are 80 and 110 mm, respectively. The mold has been redesigned and can support the maximum compression force of 1,500 kN. with the bearing steel, AISI 52100, obtainable hardness 65 HRC, the stress concentration occurs at the neck of the upper punch using the ultrasonic at 12.00 to 12.45 kHz.

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