The production of molybdenum wire for EDM (Electrical Discharge Machining) cutting involves several key steps, each critical for ensuring the wire's high quality, precision, and performance characteristics. Here's an overview of the typical production process:

Molybdenum Powder Production
Purification: Molybdenum ore is purified to produce molybdenum oxide, which is then reduced to molybdenum powder.
Blending: The powder is blended to achieve the desired chemical composition.
Powder Metallurgy
Pressing: The molybdenum powder is pressed into a compacted form under high pressure.
Sintering: The compacted powder is heated in a furnace below its melting point to bond the particles together, forming a solid mass.
Metal Drawing
Swaging/Hot Drawing: The sintered molybdenum is initially formed into rods through a hot drawing or swaging process, which reduces its diameter and increases its length without changing its volume.
Wire Drawing: The rods are further drawn through a series of dies to progressively reduce their diameter to the desired size for EDM wire. This process is performed under controlled conditions to prevent wire breakage and ensure uniform diameter.
Cleaning and Annealing
Cleaning: The drawn wire is cleaned to remove any lubricants, oxides, or other contaminants from its surface.
Annealing: The wire is then annealed, a heat treatment process that relieves internal stresses induced during drawing, enhancing its ductility and electrical conductivity.
Inspection and Packaging
Quality Control: The final wire undergoes rigorous quality control tests to verify its diameter, tensile strength, surface quality, and electrical properties.
Spooling and Packaging: Once approved, the wire is spooled onto reels of specified lengths and packaged for shipping, ensuring protection against damage and contamination.
This production process is carefully controlled and monitored to ensure that the molybdenum wire meets the stringent requirements necessary for efficient and precise EDM cutting applications.