Vacuum Brazing of Tungsten Steel and Stainless Steel for Tools and Dies Industry
Introduction to Tungsten Steel and Stainless Steel in Tools and Dies
Tungsten steel and stainless steel are high-performance materials widely used in the tools and dies industry due to their exceptional strength, hardness, and wear resistance. Tungsten steel, an alloy containing high percentages of tungsten and carbon, is known for its extreme hardness, high melting point, and excellent resistance to abrasion, making it ideal for cutting tools, punches, and molds. Stainless steel, composed primarily of iron, chromium, and nickel, offers corrosion resistance, toughness, and thermal stability, making it suitable for dies, molds, and precision tooling components. These materials are essential in applications requiring durability, precision, and long service life, such as automotive dies, metal stamping tools, cutting tools, and high-performance molds. Vacuum brazing ensures these metals are joined with minimal distortion and contamination, preserving their mechanical properties and performance in high-precision tools.
Vacuum Brazing Process of Tungsten Steel and Stainless Steel and Advantages over Traditional Induction Furnaces
Vacuum brazing of tungsten steel and stainless steel is typically carried out at a temperature range of 980°C to 1100°C under a high vacuum of 10⁻³ to 10⁻⁵ mbar, using filler materials such as nickel-based alloys (e.g., Ni-Cr-Si) or silver-copper alloys (e.g., Ag-Cu-Pd). Compared to traditional induction furnace brazing, vacuum brazing offers several advantages:
Oxidation-free joints for stronger, cleaner assemblies.
Uniform heating, reducing thermal stress and microcracks in tungsten steel.
Minimal distortion and warpage, maintaining precise dimensions.
High reliability and repeatability, ideal for batch production.
Effective use of advanced filler materials, ensuring strong bonding of dissimilar metals.
Reduced post-processing, as flux residues and surface discoloration are eliminated.
Normantherm Vacuum Furnaces: Indian Manufacturing Solution
With over 15 years of expertise, Normantherm designs and manufactures vacuum furnaces specifically for the Indian tooling industry. Their systems feature PLC-controlled heating and high-precision vacuum chambers, ensuring consistent thermal profiles, clean joints, and repeatable results for complex tungsten steel and stainless steel components. Indian manufacturers can achieve superior brazing quality, reduce defects, and enhance productivity, making Normantherm a trusted partner for high-performance tools and dies manufacturing.
Editor: Sahera Khatun
Copyright: Normantherm Vacuum Furnace
