Buy Multi-Axis CNC Machining: Global Manufacturers & Products

Pure copper exhibits an absorption rate of under 5% when exposed to standard infrared (1064 nm) fiber laser radiation. The remaining 95% of the laser beam is reflected, leading to severe spatter, cold shut voids, lack of fusion, and optical sensor damage. TC Precision employs green laser systems operating around a 515 nm wavelength, where pure copper's absorption jumps past 40%. This enables an orderly, dense melt pool without overheating, generating copper parts with electrical and thermal conductivities exceeding 98% IACS and relative density exceeding 99.8%.

As-printed Laser Powder Bed Fusion (LPBF) metal features have nominal surface tolerances ranging between ±0.1 mm and ±0.2 mm. For critical functional mating interfaces—such as bearing bores, O-ring sealing surfaces, gear teeth, and dowel pin alignment holes—we program secondary CNC finishing. Using our temperature-controlled 5-axis centers, we reliably hold linear tolerances to ±0.005 mm, true positional tolerances to within 0.01 mm, and hole cylindrical runout within 0.003 mm.

We operate with zero minimum order quantity (MOQ = 1 unit). We regularly assist research institutions, robotic startups, and aerospace OEMs with individual rapid validation prototypes, bridge-to-production pilot batches of 50–500 units, and full production runs scaling past 50,000 components annually. During our initial Design for Manufacturability (DFM) review, our engineers advise whether whole-billet CNC subtractive machining or hybrid additive-to-subtractive routing is the most economical solution for your specific batch size.

For an accurate review, please submit 3D solid geometry in STEP (.stp), IGES (.igs), or Parasolid (.x_t) format (along with STL files if additive manufacturing is desired), accompanied by a 2D PDF drawing detailing all critical GD&T callouts, surface roughness requirements (Ra), thread pitch, material grade specifications, and surface finishing instructions (such as hard anodizing, nickel plating, or passivation). If your intellectual property requires legal protection, we readily provide a bilateral Non-Disclosure Agreement (NDA) prior to review.

Each production lot undergoes inspection inside our metrology cleanroom using calibrated coordinate measuring machines (CMM), optical profilometers, and gauge pins calibrated according to ISO/IEC 17025. Standard documentation includes a Dimensional CMM Report, Raw Material Mill Test Certificates (MTC), and Heat Treatment Traceability sheets. For overseas transit, components are ultrasonically cleaned, treated with vapor-phase corrosion inhibitors (VCI), individually packed in vacuum-sealed anti-static antishock foam, and crated in heavy-duty reinforced export wooden cases suitable for express air or containerized ocean freight.

Thin-walled structural parts, particularly in aerospace aluminum (7075-T6) and titanium alloys (Ti-6Al-4V), are vulnerable to internal stress relief and cutting thermal distortion. We mitigate this through a systematic workflow: roughing within 1.0 mm of final dimensions, followed by vibratory or vacuum oven stress relief, and high-pressure flood coolant finishing utilizing high-speed trochoidal toolpaths. Additionally, customized sacrificial potting fixturing or vacuum chucking is applied to support delicate walls, avoiding chatter and wall deflection.