Process and mechanism of cutting thermoplastic polyurethane (TPU) film by nanosecond ultraviolet laser
Source abstract
Abstract
Thermoplastic polyurethane (TPU) films have been widely used as substrates in the rapidly developing fields of flexible electronics and soft actuators. Patterned high-quality cutting is of great significance to the promotion of applications. In order to clarify the mechanism of laser cutting, Raman and thermal analyses were performed. Raman tests verified that no new solid by-products were produced after laser cutting. Thermal cracking and thermogravimetric-infrared combined analysis were used to simulate the process of nanosecond laser cutting, and the results showed that the gas by-products released were mainly composed of organic substances including ketone and phenol with benzene ring as the main body, as well as low-chain hydrocarbons and alcohols. Moreover, a cutting quality evaluation standard consists of cutting kerf zone (CKZ) and heat-affected zone (HAZ) was established. And based on this standard, the better nanosecond laser cutting parameters are 10 kHz and 0.03 m/s, which was obtained from a 2-factors and 5 levels orthogonal experiment. Main effect and interaction analysis were performed to clarify the impact of laser parameters on cutting quality and each other.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Tactile and Sensory Interactions · Laser Material Processing Techniques · Advanced Sensor and Energy Harvesting Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (37)
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