Fibers· 2026Q1
Characterization of Kerf Surface Using Complementary Roughness Descriptors in Abrasive Waterjet Cutting of Kevlar Fiber-Reinforced Polymers
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- Q1SCImago
- 2026year
Short summary
Complementary roughness descriptors (profile height, distribution, spacing, slope) reveal distinct kerf wall morphologies in AWJC of Kevlar composites, differentiating smooth top zones from striated bottom zones.
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Key points
- Complementary roughness descriptors (profile height, distribution, spacing, slope) provide deeper insight into kerf wall morphology than amplitude-based parameters.
- AWJC of Kevlar composites generates distinct top (smooth) and bottom (striated) kerf zones, identifiable by these descriptors.
- All investigated roughness descriptors were significantly influenced by cutting parameters and showed strong inter-correlations.
- The findings suggest a unified material removal mechanism is at play during AWJC of these composites.
AI-generated from the title and abstract; the full text is not read.
Abstract
Abrasive waterjet cutting (AWJC) is widely used for processing Kevlar-reinforced polymer composites; however, surface quality is typically assessed using amplitude-based roughness parameters like Ra and Rz, which offer limited insight into the overall morphology of the machined surface. This study investigates the use of complementary roughness descriptors—focusing on profile height, distribution, spacing, and slope—to characterize the kerf wall morphology generated during the cutting process. Measurements were performed across different zones of the kerf wall under varied cutting conditions, enabling the examination of how specific process parameters influence these descriptors. All investigated parameters significantly influenced the four roughness descriptors, which proved to be strongly inter-correlated, reflecting a unified material removal mechanism. Furthermore, a clear distinction was highlighted between the smooth, uniform top zone and the rougher bottom zone featuring diagonal striations, confirming the sensitivity of these descriptors to local variations in cutting conditions.
The authors' abstract, as published at the source. Fibers, 2026 · DOI ↗
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