TC4 Titanium Thin Wall 0.8mm Minimum CNC Machining Center with 0.01mm Wall Tolerance for 5-Axis CNC Machining

• Wall Tolerance 0.01 mmThin ribs measured before and after the final pass
• Minimum Wall 0.8 mmReduced radial engagement, sequenced cuts
• Order Size 1 PieceTC4 prototype in 5–10 working days

ISO 9001:2015 certified • TC4 (Ti-6Al-4V) billet • First article report with every shipment • Exporting since 2008.

Titanium is machined for two reasons: it keeps strength where aluminium softens, and it survives environments where corrosion would end an aluminium part in months. Both come at a cost. TC4 conducts heat poorly, so heat concentrates at the cutting edge and the workpiece grows as it warms; it springs back elastically under the tool, so a wall that measures correctly on the machine can relax out of tolerance once the fixture is released; and it work-hardens if the tool rubs instead of cutting.

A thin-wall cavity therefore cannot be made by cutting faster. It is made by controlling heat input and removing material in a sequence that keeps the remaining section balanced — rough symmetrically, let the part stabilise, semi-finish, measure, then take the final pass with a reduced radial engagement and a sharp, coated tool. Ribs at 0.8 mm are achievable, but only with that discipline and with in-process measurement.

Three numbers govern the quote on a titanium cavity: minimum wall, depth-to-width ratio, and how much of the material has to come out. Tell us all three up front and the process route — and the honest lead time — can be set before the drawing is even finished.

• Material: TC4 (Ti-6Al-4V) standard; Ti-6242 for higher temperature; 17-4PH or 316L stainless where titanium is not required; 6061 aluminium for a cost-down variant.
• Finish: as-machined Ra 0.8 µm; bead blast matte; polished Ra 0.4 on request; passivation or chemical conversion for specific programs; no anodize on titanium.
• Geometry: shallow pockets, deep pockets, curved and organic contours, ribs from 0.8 mm, boss and flange features, seal grooves, mounting ears.
• Interfaces: tapped holes M2 upward, dowel holes, O-ring grooves, optical seat, insert pockets.
• Size: 20 mm to 350 mm overall; wall from 0.8 mm; removal volumes up to 80% of the billet.
• Documentation: mill certificate, dimensional report, surface integrity note, first article report; FAI to AS9102 format on request.

Aerospace and instrument cavities are usually covered by a program NDA before a drawing is even released, and we work inside that expectation. A mutual NDA is signed before any file is opened — ours in English or Chinese, or your own form — and a countersigned copy goes back before work starts. Only the project engineer, the 5-axis programmer and the cell supervisor can access the file, which sits in a restricted folder rather than on the shop network. No photographs of customer parts are taken for our catalogue or website, customer parts are never displayed or reused as samples, subcontracting requires your written approval, and at program close files and inspection data are deleted or returned with written confirmation.

Dongguan Changxinda Precision Technology Co., Ltd has been machining custom parts since 2008: 15+ years, 90 to 100 staff, 50–60% exported to North America and Europe, 200+ customers served, turnover in the RMB 10–20 million band. The floor holds 4-axis and 5-axis CNC machining centres, turn-mill combined lathes and CNC lathes under an ISO 9001:2015 system, producing titanium, aluminium and stainless parts for medical, robotics, automotive, aerospace, automation, laser, LED, lithium battery and precision instrument programs. Titanium machining, fixture building, measurement and inspection are all in our own hands in Dongguan.

Titanium and aluminium cavities from this plant ship into ten industries. Each line is a category we machine regularly, with the parts customers actually order.

All ten sectors run through the same plant and the same ISO 9001:2015 inspection discipline — only the material, finish and documentation package change.

• Prototype: 5–10 working days after drawing approval (titanium cuts slowly — we quote the real number rather than a hopeful one).
• Small batch 10–100 pcs: 12–20 working days depending on removal volume.
• Repeat orders: run from archived programs, fixtures and tool lists; wall values and inspection plan are identical to the first delivery.
• Capacity: 10,000 pieces per month across the plant, with titanium planned into reserved cell slots.
• Visibility: a dated progress note with photographs of your actual part at roughing, finishing and measurement.
• Shipping: parts bagged with protective film, foam-lined export carton or crate, express or air and sea per your forwarder.
• Rush: overtime slots available; for titanium we will tell you honestly whether the date is achievable before you commit.