A Ø480 mm pre-sintered alumina ceramic blank. The goal: cut it before final sintering to reduce machining allowance and downstream processing cost. The constraint: the material is fragile at this stage — too much cutting force causes edge cracking or workpiece fracture. This case describes how we approached the cut, why dry cutting was required, […]
A large-diameter graphite ring. Multiple precision slots. Dry-cut at 40–70 m/s — and every slot wall has to come out clean. Graphite cuts fast. That’s not the problem. The problem is that graphite also fractures fast, and on a large cylindrical ring with multiple slots, each cut pass is another opportunity for a crack to
If you are cutting YIG or GGG garnet for Faraday rotators, the machine you need is a diamond wire saw — specifically one with closed-loop wire tension control and a precision orientation fixture. Standard slicing saws produce too much kerf loss and too much subsurface damage for optical-grade garnet. This page covers which machines work,
Garnet Crystal Cutting Machine: Diamond Wire Saw Solutions for YIG and GGG Optics Read More »
A fused quartz glass ring. 420 mm outer diameter, 300 mm inner bore, 18 mm thick. The ring has to come out intact — one piece, no cracks, edges clean enough to go straight into grinding and polishing. At this size, that is not a given. Fused quartz is brittle. The larger the workpiece, the
Large Quartz Glass Ring Cutting: 420 mm OD, Edge Chipping Under 0.2 mm Read More »
Diamond wire cutting high value brittle materials requires a fundamentally different approach from cutting structural metals or standard optical glass. When you are cutting a block of germanium worth several thousand dollars, the cost of a single bad cut is not a process inefficiency — it is a financial event. The material cannot be re-melted
A 300 mm diameter alumina ceramic ring. High purity. A cutting trial for a customer in Germany. At this scale, the challenge is not just holding a tolerance — it’s preventing edge chipping and microcracks across a large, brittle workpiece where the consequences of a failed cut cannot be undone. The Application: A Trial Cut
Cutting a 300 mm Alumina Ceramic Ring: Managing Edge Chipping and Microcracks at Scale Read More »
Silicon carbide seal rings end up inside pump housings, automotive water pumps, and chemical process equipment — applications where one ring failure shuts down whatever the assembly is sealing. The ring in this case measures 60 mm outer diameter, 10 mm inner bore, 10 mm thick. Small enough to look unremarkable. Hard enough that conventional
Cutting a Silicon Carbide Ring with Stable Inner and Outer Geometry Read More »
A high-purity quartz tube, nearly one meter long. A continuous hexagonal bore that has to run straight through the entire length. A material that chips and microcracks at the slightest mechanical stress. At first glance this looks like a simple quartz tube. The hexagonal bore changes everything. Conventional internal grinding cannot reach deep into a
Cutting a Continuous Hexagonal Bore Through a 1-Meter Quartz Tube Read More »
A 10 mm thick alumina ceramic ring. A single cut. Two usable parts. This is not a standard slicing job. The geometry here is the challenge — and it’s a useful case for understanding what precision actually means when cutting advanced ceramics. The Application: One Workpiece, Two Finished Rings The customer’s objective wasn’t to cut
Splitting an Alumina Ceramic Ring Into Two: When the Entire Cutting Allowance Is 0.4 mm Read More »
Pure tungsten cracks at room temperature. Not sometimes — almost always, if your cutting method generates any lateral force. We had a customer ship us a 25 mm diameter tungsten rod for cross-sectional analysis. Their abrasive saw had shattered three samples before they called us. The rod looked fine on the outside, but tungsten’s ductile-to-brittle
Don’t worry! We know that obtaining cutting machines that meet your needs can be very challenging. Our professional cutting experts are always available to support you: