Lund, Sweden

Viveka Alfredsson


Average Co-Inventor Count = 8.0

ph-index = 2

Forward Citations = 13(Granted Patents)


Company Filing History:


Years Active: 2001-2004

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3 patents (USPTO):Explore Patents

Title: Innovations by Viveka Alfredsson

Introduction

Viveka Alfredsson is a notable inventor based in Lund, Sweden. She has made significant contributions to the field of cutting tools, particularly through her innovative patents. With a total of three patents to her name, her work focuses on enhancing the performance and durability of cutting tools used in metal machining.

Latest Patents

One of her latest patents is the PVD Al2O3 coated cutting tool. This invention describes a coated cutting tool designed for metal machining. The coating consists of one or more layers of refractory compounds, with at least one layer of fine-grained, crystalline γ-phase alumina, Al2O3, featuring a grain size of less than 0.1 µm. The Al2O3 layer is deposited using a bipolar pulsed DMS technique (Dual Magnetron Sputtering) at substrate temperatures ranging from 450°C to 700°C, preferably between 550°C and 650°C, depending on the specific material of the tool body. The identification of the γ-phase alumina is achieved through X-ray diffraction, with reflexes from the (400) and (440) planes occurring at the 2θ angles of 45.8 and 66.8 degrees when using Cu radiation. The alumina layer is strongly textured in the [440]-direction and is virtually free of cracks and halogen impurities. Additionally, the Al2O3 layer provides the cutting edge of the tool with an exceptionally smooth surface finish.

Career Highlights

Throughout her career, Viveka has worked with prominent companies, including Sandvik AB. Her expertise in the field has allowed her to develop innovative solutions that enhance the efficiency and effectiveness of cutting tools.

Collaborations

Viveka has collaborated with notable individuals in her field, including Siegfried Schiller and Klaus Goedicke. These collaborations have contributed to her success and the advancement of her inventions.

Conclusion

Viveka Alfredsson is a pioneering inventor whose work in the development of cutting tools has made a significant impact in the industry. Her innovative patents reflect her dedication to improving metal machining processes.

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