冷間鍛造金型用超硬合金の圧縮変形特性の簡易推定法

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タイトル別名
  • A Simple Measurement Method for Compression Behavior of Cemented Carbide for Cold-Forging Die
  • レイカン タンゾウ カナガタヨウ チョウコウゴウキン ノ アッシュク ヘンケイ トクセイ ノ カンイ スイテイホウ

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抄録

The compression behavior of cemented carbide for cold-forging dies is necessary to calculate the prestress in the die insert by an interference fit. In this paper we describe a simple method of obtaining the compression behavior using the Rockwell hardness test. Six kinds of cemented carbide which are the main materials for cold-forging dies were used in this experiment. The compression property of the cemented carbide was measured precisely by the compression test directly and expressed using an accurate approximation equation. It was found that the coefficients of the equation have a good correlation with Rockwell hardness. It was shown that the stress-strain curves generated using Rockwell hardness have good agreement with the measured ones.

収録刊行物

  • 塑性と加工

    塑性と加工 54 (627), 358-362, 2013

    一般社団法人 日本塑性加工学会

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