Abstract
Rhodium is a rare material that is widely used in electrical and electronic components due to its excellent mechanical and electrical properties. Ultra-fine rhodium wires in particular are widely used in electronic components. In this study, a multi-pass wire drawing process was designed to fabricate ultra-fine pure rhodium wire with a diameter of 50.0 µm from an initial diameter of 80.0 µm, which is used as probe card pins. An elastic–plastic finite element (FE) analysis was performed to validate the pass schedule that was designed for this study. A fine wire drawing experiment was also carried out to verify the effectiveness of the designed process. As a result, the ultra-fine rhodium wire was fabricated using the design process without wire breaks and the diameter of the final drawn wire was 47.80 µm.
Highlights
Demand for fine rhodium wire has it is a pin material used to characteristics of semiconductors or printed circuit boards (PCBs)
It is very important to design an appropriate pass schedule in the multi-pass drawing process fabricating fine wires, as the application of an inappropriate pass schedule could lead to wire breakage, for fabricating fine wires, as the application of an inappropriate pass schedule could lead to wire and resuming the process is fairly expensive and time consuming [14]
As the demand for fine parts has gradually increased over recent years, the demand for ultra-fine wires has increased
Summary
Fine wires wires are are manufactured manufactured from from several several different different materials, materials, such such as as tungsten, tungsten, copper, copper, stainless stainless. Ultra-fine wires are being in high value-added industries, such as electronics and medical devices [9,10,11]. The demand The for fine rhodium wire has increased, asincreased, it is a pin as material used to measure themeasure electric components. Demand for fine rhodium wire has it is a pin material used to characteristics of semiconductors or printed circuit boards (PCBs). Tungsten, Ag–Pd alloys, measure the micro-current, a sufficient electrical conductivity is required. 80.0 μm rhodium wire using a multi-pass wire drawing process. Some studies have been initial 80.0 μ m rhodium wire using a multi-pass wire drawing process. Some studies have designed the the taper taper down down reduction reduction carried out to design a multi-pass wire drawing process.
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