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使用大量碳超和工具钢模的无干近网造
Tatsuhiko Aizawa1, Takeshi Kihara2, Tomomi Shiratori3
1Surface Engineering Design Laboratory, Shibaura Institute of Technology, Tokyo 144-0056, Japan.
Materials (Basel, Switzerland)
|October 16, 2024
概括
大规模超和碳 (MCSed) 工具钢模具使得无化可以在没有滑剂的情况下造. 一个在现场形成的自由碳膜作为一个 tribofilm,减少摩擦和磨损,提高产品质量和模具寿命.
科学领域:
- 材料科学 材料科学 材料科学
- 部落学 (tribology) 是一个学科.
- 制造业 工程 制造工程
背景情况:
- 造通常需要滑剂来防止黄化和磨损.
- 现有的工具钢在造时容易粘附和磨损,特别是在干燥的条件下.
- 开发先进的模具材料对于高效和可持续的加工至关重要.
研究的目的:
- 开发和评估大规模碳超和 (MCSed) 工具钢模具,用于干造.
- 为了研究MCSed模具的无化造行为和滑机制.
- 评估MCSed模具对产品质量和造中模具性能的影响.
主要方法:
- 塑浸泡碳化工艺应用于SKD11和ACD56工具钢在673K的14.4Ks以实现大规模的碳超和.
- 使用MCSed SKD11模具对纯条进行颠倒造试验,以评估摩擦和黄化.
- 对模具接触面的微结构分析,以确定滑性 tribofilm 形成.
- 使用MCSed ACD56模具进行眼镜框架造,以评估表面质量和性能.
主要成果:
- 在MCSed SKD11模具中,在颠覆过程中,摩擦极低 (μ = 0.05) 和凸极小.
- 一个在现场形成的自由碳膜被确定为一个tribofilm,有效地减少摩擦和粘合剂磨损.
- MCSed ACD56模具显著改善了造眼镜框架的表面质量,将平均粗度从4.12μm降低到0.99μm.
- 观察到MCSed ACD56模具的应用负载减少了30%,这表明造效率有所提高.
结论:
- 在干燥条件下,MCSed工具钢模具为无化造提供了有效的解决方案.
- 在现场生成的自由碳 tribofilm 对于 MCSed 模具的优越滑和耐磨性至关重要.
- 这项技术提高了造产品的质量,延长了模具的寿命,为制造提供了显著的优势.
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