When purchasing machined copper parts, factors such as material properties, machining accuracy, supplier capabilities, application scenarios, and cost control should be considered comprehensively.
Clearly define material types and performance requirements. Commonly used materials for machined copper parts include brass (such as HPb63-3, H59-3), copper, and lead-free copper alloys. Different materials have significantly different application scenarios:
HPb63-3 leaded brass:
Excellent machinability (set as the 100% machinability benchmark for copper alloys), suitable for high-speed automated machining.
Tensile strength ≥390 MPa, elongation ≥10%, suitable for low-stress structural parts such as gears, bushings, and valve cores.
Pure copper:
Excellent electrical and thermal conductivity, suitable for electrical connectors and heat sinks.
Prone to tool sticking during machining; requires tools with a large rake angle, high cutting speed, and specialized cutting fluid.
H59 Brass:
Commonly used for fasteners such as nuts and washers .
Good corrosion resistance, suitable for humid environments such as plumbing and electrical switches.
Technical Certifications: Such as IATF 16949 (automotive), ISO 13485 (medical), ISO 9001, etc., ensuring a reliable quality system.
Industry Endorsement: Do our clients include leading companies in aerospace, medical, and automotive industries (e.g., Jiuhui Spring serves China Aerospace and Mindray Medical)?
Response Speed: The electronics industry requires rapid prototyping capabilities (Lanqiaoying Technology leverages the Pearl River Delta supply chain for agile response).
Cost and Delivery Stability: Large-scale manufacturers like Lisheng Spring are more suitable for large-volume, long-term stable procurement.
