傾斜機能超硬合金モデルの作製における硬さ分布の制御  [in Japanese] Control of Hardness Distribution in Fabrication of Functionally Graded Cemented Carbide Model  [in Japanese]

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Author(s)

Abstract

Functionally graded cemented carbide (FGCC) models with a hardness distribution are fabricated by combining the powder layer compaction (PLC) technique and CNC milling. In the fabrication of the FGCC model, powders of cemented carbide (WC) with different Co contents are combined by compaction and then the resulting green compact is sintered. The hardness is confirmed to change smoothly around the interface of the WC samples with different Co contents in the sintered FGCC models. To control the hardness distribution of the sintered FGCC models, the influences of fabrication conditions on Co diffusion and movement during sintering are examined. Presintering at temperatures higher than 600 °C is found to be effective for suppressing Co diffusion and movement. Furthermore, residual stress in the sintered FGCC die model is estimated. When the inner layer is presintered at 1300 °C, a compressive residual stress is confirmed to be induced in the inner layer of the sintered FGCC die model.

Journal

  • Journal of the Japan Society for Technology of Plasticity

    Journal of the Japan Society for Technology of Plasticity 52(608), 1017-1021, 2011-09-25

    The Japan Society for Technology of Plasticity

References:  9

Cited by:  1

  • Forging  [in Japanese]

    Forging Committee , 清水 透 , 丸茂 康男 , 北村 憲彦 , 吉田 佳典 , 藤川 真一郎 , 白石 光信

    Journal of the Japan Society for Technology of Plasticity 53(619), 692-697, 2012-08-25

    J-STAGE  References (197)

Codes

  • NII Article ID (NAID)
    10029464712
  • NII NACSIS-CAT ID (NCID)
    AN00135062
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    00381586
  • NDL Article ID
    11252101
  • NDL Source Classification
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL Call No.
    Z17-218
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
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