Effects of size reduction on deformation, microstructure, and surface roughness of micro components for micro metal injection molding

Liu, Lin; Wang, Xin-da; Li, Xiang; Qi, Xiaotong; Qu, Xuanhui

doi:10.1007/s12613-017-1491-5

Cited by 3 publications

(1 citation statement)

References 15 publications

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“…In powder metallurgy, the metal injection moulding process (MIM) is one of the producing methods that uses a new approach in plastic injection science with a combination of metal powder [1,2]. During injection, the combination of polymeric and metal phases has removed restrictions on the traditional press-and-sinter method in powder metallurgy [3,4].…”

Section: Introductionmentioning

confidence: 99%

Growth inhibiting during ultra-high temperature sintering of injection moulded 17-4 PH stainless steel through the dispersion of ZrO₂ particle as a thermal stabiliser

Moradjoy

Khorsand

2022

Powder Metallurgy

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The present work deals with the metal injection moulding and ultra-high temperature sintering of 17-4 PH powder. Purposefully, 5 mass% ZrO 2 particles were dispersed by applying high shear stress during feedstock preparation. Uniformly distributed particles effectively hindered the powder boundary migration and limited their growth during ultra-high sintering temperatures. The achieved thermal stability provided a proper condition for reducing the final porosity to 3% and significantly improved the ultimate strength to 1070 MPa after sintering at 1380°C. Also, the ZrO 2 particles acted as facilitators of sliding between solid powders and substantially reduced the required pressure for injecting to 700 Bar. Through introducing such a new approach in the field of powder injection moulding by ZrO 2 particles, the amount of anisotropic shrinkage was reduced to 2%.

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Section: Introductionmentioning

confidence: 99%

Growth inhibiting during ultra-high temperature sintering of injection moulded 17-4 PH stainless steel through the dispersion of ZrO₂ particle as a thermal stabiliser

Moradjoy

Khorsand

2022

Powder Metallurgy

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Thermal and Rheological Behaviour of a Wax Based Binder and an Alumina Feedstock for Micro-PIM Application

Islam

Samanta

Lohar

et al. 2021

Advances in Thermal Engineering, Manufacturing, and Production Management

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Influence of electromagnetic effect parameters on ferromagnetic powders fluidity

Egorov

2018

MATEC Web Conf.

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The paper presents result of experimental studies of ferromagnetic powders fluidity management by effecting on particulate medium with constant and alternating gradient magnetic fields. Induction lines of constant magnetic field are perpendicular to symmetry axis of powder hopper. Alternating field is created by electromagnet with one tapering pole and has higher induction gradient values near hopper outlet. These fields form magneto fluidized bed from powder in hopper allowing powders of barium and strontium hexaferrite to flow through the hopper outlet. Dependencies of efflux speed from parameters of electromagnetic fields are presented for barium hexaferrite powder with average particle size 1 μm and strontium hexaferrite powders with average particle sizes 1 and 9 μm.

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Effects of size reduction on deformation, microstructure, and surface roughness of micro components for micro metal injection molding

Cited by 3 publications

References 15 publications

Growth inhibiting during ultra-high temperature sintering of injection moulded 17-4 PH stainless steel through the dispersion of ZrO₂ particle as a thermal stabiliser

Growth inhibiting during ultra-high temperature sintering of injection moulded 17-4 PH stainless steel through the dispersion of ZrO₂ particle as a thermal stabiliser

Thermal and Rheological Behaviour of a Wax Based Binder and an Alumina Feedstock for Micro-PIM Application

Influence of electromagnetic effect parameters on ferromagnetic powders fluidity

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Effects of size reduction on deformation, microstructure, and surface roughness of micro components for micro metal injection molding

Cited by 3 publications

References 15 publications

Growth inhibiting during ultra-high temperature sintering of injection moulded 17-4 PH stainless steel through the dispersion of ZrO2 particle as a thermal stabiliser

Growth inhibiting during ultra-high temperature sintering of injection moulded 17-4 PH stainless steel through the dispersion of ZrO2 particle as a thermal stabiliser

Thermal and Rheological Behaviour of a Wax Based Binder and an Alumina Feedstock for Micro-PIM Application

Influence of electromagnetic effect parameters on ferromagnetic powders fluidity

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Product

Resources

About

Growth inhibiting during ultra-high temperature sintering of injection moulded 17-4 PH stainless steel through the dispersion of ZrO₂ particle as a thermal stabiliser

Growth inhibiting during ultra-high temperature sintering of injection moulded 17-4 PH stainless steel through the dispersion of ZrO₂ particle as a thermal stabiliser