ABSTRACT Roll compaction is a powder metallurgy process that has the potential for cost reduction in the production of titanium parts. In this study, experiments were carried out to investigate the effects of powder type and size on the roll compaction and subsequent sintering and cold rolling behaviour of titanium powder. Powders used ranged in upper sieve sizes from 0.15 to 3 mm. Strip density was found to increase with decreasing powder size while thickness decreased. Following sintering in the range of 800–1200°C, cold rolling was performed with various levels of thickness reduction. Average (across the width) densities of up to 88% were achieved, with higher density regions in the middle of the strips reaching up to 99%. Roll force was measured during cold rolling and found to increase with increasing final (post-cold rolling) density and also with increasing roll gap reduction amounts.

中文翻译：

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粉体材料及工艺参数对海绵钛辊压、烧结和冷轧的影响

摘要 辊压是一种粉末冶金工艺，具有降低钛零件生产成本的潜力。在这项研究中，进行了实验以研究粉末类型和尺寸对钛粉的辊压和随后的烧结和冷轧行为的影响。所用粉末的上筛尺寸范围为 0.15 至 3 毫米。发现条带密度随着粉末尺寸的减小而增加，而厚度减小。在 800-1200°C 的范围内烧结后，冷轧进行了不同程度的厚度减薄。实现了高达 88% 的平均（横向）密度，条带中间的更高密度区域高达 99%。