A study of anti-seizure tool coatings of ironing of stainless steel
Sheet stamping of stainless steel with coated tools alone may not necessarily impede galling unless hazardous mineral oils are applied. The present study focuses on an investigation of a double-layer tool coating structure applied in a continuous strip reduction test emulating the conditions in...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
2018
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/85665/1/JT-17-1-14.pdf http://irep.iium.edu.my/85665/ |
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| Summary: | Sheet stamping of stainless steel with coated tools alone
may not necessarily impede galling unless hazardous
mineral oils are applied. The present study focuses on an
investigation of a double-layer tool coating structure
applied in a continuous strip reduction test emulating the
conditions in production by ironing. The coating films
consists of Diamond-Like Carbon (DLC) and Hyperlox®.
The results revealed that the DLC/Hyperlox® coating was
functioning effectively without peeling off and galling if
nonhazardous lubricant was applied. This has improved
the tribological system significantly since the coating
allowed the hazardous lubricant to be abandoned.
Numerical analysis using a thermo-mechanical analysis
supports the experimental findings, where the new tribosystem minimizes the temperature at the tool/workpiece interface by reducing the friction. |
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