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Laser transparent materials like glass or translucent polymers, femtosecond laser pulses exhibit such a high peak intensity that highly localized non-linear absorption is induced.
This unique process ensures that absorption occurs exclusively at the internal focus point of transparent materials with inhibited propagation of process heat through the surrounding material. An immediate benefit of this is a significant reduction of the heat-affected zone (HAZ); a common side effect of laser ablation.
Laser transparent materials , in which two grades of thermoplastic materials are joined together, is a process that has been industrially established for years: The transparent joining partner is penetrated by the laser, while the absorbing one is heated.
The absorbent plastic melts the transparent joining area and is pressed together with a suitable fixture. Application examples can be found in medical engineering, automotive, electronics and even household appliances
The laser materials market share from the instrumentation & sensors application segment is projected to grow at a steady pace over the study timeframe.
Notable product adoption in the instrumentation & sensors sector is set to drive segmental progress in the upcoming period.
The Global Laser Transparent Materials Market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2023 to 2030.
Pocan B3233XHRLT – LANXESS has developed a range of laser-weld polyamide, PBT Durethan LT and Pocan LT (laser transparent) materials.
At present, there is almost no such material on the market, because the standard hydrolysis stability additive usually leads to a significant decrease in the laser transparency of the PBT material.
According to customer standards, a wide range of component testing services, such as performing dynamic testing on larger components, and A climate test is required. The service also includes technical support for injection molding, welding and sampling to enable mass production.
The new material from LANXESS that can be used for laser welding is the Pocan TP150-002. This 30% glass fiber reinforced PBT compound is optimized for extremely high laser transparency.
The transmittance is 13%, which is about twice that of most other laser-transparent PBT products (measured at 980 nm with a LPKF TMG-3 device and a sample thickness of 2 mm)
For laser applications, Heraeus provides fused silica optics, such as their “Heraeus Quartzlaser” product line. For various laser wavelengths, these optics comprise laser windows, lenses, and beam delivery components that are designed to offer excellent transmission and low scatter.
Products made from fused silica glass by Corning are appropriate for laser systems. In the UV, visible, and near-infrared spectral regions, their “Corning® HPFS® 7980” fused silica demonstrates good transparency. It is frequently used for windows, components, and laser optics.
Rayotek Scientific produces laser-transparent windows, such as their “Sapphire Laser Windows.” These windows provide outstanding transparency and durability for laser applications since they are made of premium sapphire.
A variety of laser glass materials are available from Schott, such as their “Schott N-BK7® Laser Optics.” Widely employed in laser systems, N-BK7 is a flexible optical glass that provides good transmission and minimal optical absorption throughout a range of wavelengths.
Laser-grade optics are offered by Edmund Optics, including their “TECHSPEC® UV Fused Silica Plano-Convex (PCX) Lenses.” These lenses have a high transmission and low scatter in UV and visible wavelengths since they are made of UV-grade fused silica.
At regular intervals during manufacturing, AKRO-PLASTIC measures the laser transparency with a laser with a 980 nm wavelength (LPKF TMG 3), and the laser transparency value is recorded on the certificate of analysis (COA) of its laser transparent compounds.
A new material was created by AKRO-PLASTIC that is laser transparent and long glass fibre reinforced: Black (7176) AKROMID® C28 LGF 40 6 XTC
The difficulty of laser welding and dynamic tests with pressurisation and a peak temperature of up to 220°C can be met by PA6.6/6 with 40% long glass fibres. With a 14.500 MPa modulus of elasticity and >27% laser transparency, it is ideal for complex housing applications in the automotive industry.
A smart platform for laser cutters called SensiCut can distinguish between 30 materials that are typically found in makerspaces and workshops.