Scholarlink

This study reports about a novel AM technology using the laser-assisted double-wire with non-transferred arc (LDNA) process. The arc burns between two wires with different polarities, using the energy efficiently for the melting of the supplemental material without direct energy transfer from the electric arc to the metal substrate material. A wobbling laser applies a tailored energy profile to ensure fusion of the first layer to the substrate and in between each layer. Cooled copper forming jaws on the sides restrict the lateral melt flow and lead to a smooth surface of the 10 mm thick wall. During main time, about 8.5 kg/h have been deposited using arc-energy and 1.5 kW laser power. Tensile strength tests and cross-sections are presented to show the inter-layer fusion. Capabilities, challenges and next steps are discussed.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Novel High-Deposition Rate AM Technology using Forming Jaws with the Laser-Assisted Double-Wire with Non-transferred arc Process

  • 会议论文

  • 发表日期：

    2026年

查看全文
  • Alexander Barroi,
  • Kai Biester,
  • Laura Budde,
  • Nick Schwarz,
  • Stefan Kaierle

摘要

This study reports about a novel AM technology using the laser-assisted double-wire with non-transferred arc (LDNA) process. The arc burns between two wires with different polarities, using the energy efficiently for the melting of the supplemental material without direct energy transfer from the electric arc to the metal substrate material. A wobbling laser applies a tailored energy profile to ensure fusion of the first layer to the substrate and in between each layer. Cooled copper forming jaws on the sides restrict the lateral melt flow and lead to a smooth surface of the 10 mm thick wall. During main time, about 8.5 kg/h have been deposited using arc-energy and 1.5 kW laser power. Tensile strength tests and cross-sections are presented to show the inter-layer fusion. Capabilities, challenges and next steps are discussed.