CNC Vertical Milling

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Using our vertical machining centers, Comet Roll & Machine Co. offers CNC vertical milling services featuring 4-axis control and live tooling for increased accuracy, complexity, and precision. Our milling machines feature a work envelope measuring 30″ x 60″ x 24″, and maintain tolerances of +/- 0.001″ for straightness, concentricity, outer diameter, inner diameter, and length. Some pieces that we have produced on our vertical milling machines include spacers, bushings, fittings, pins, valves, turbine components, turbomachinery components, machine components, and engine components.

We offer a full range of CNC vertical milling processes: drilling, boring, counterboring, countersinking, profiling, and others. Cutters that we use include flat end, ball end, chamfer and face mills, as well as reams and taps, in carbide, carbon steel, high speed steel (HSS), and cobalt high speed steel. We offer production quantities from 20 pieces up to 2,000, and, when necessary, can provide emergency or rush services with short lead times. With customers in the medical, military, chemical, aerospace, and many other industries, we are ready to meet any requirement that you may have.

Milling is a material removal process in which unwanted material are cut away to create a variety of features on a part. Flat, curved, or irregular surfaces are fed against a rotating cutter containing a number of cutting edges. A vertical milling machine orients the cutter vertically.

Portfolios

Capabilities

Industry Focus

Aerospace Agricultural Architectural Auto/Truck/Transportation Chemical Dental Electronic Food Machine Tool Marine Medical Military Oil Field Optical Packaging/Converting Pharmaceutical

Intended Application

Machine components Engine components Turbine components Hydraulic components Turbomachinery components Construction equipment Shafts Forgings Jewelry Valves Pins Thread rod Fasteners Spindles Sockets Bushings Spacers Fittings Standoffs

Vertical Milling Processes

Drilling Boring Counterboring Countersinking Pocketing Profiling Reaming Tapping

Materials (Metals)

Alloy Steels Aluminum Beryllium Brass Bronze Alloys Carbide Carbon Steel Cobalt Copper Iron Lead Magnesium Molybdenum Monel Nickel Palladium Stainless Steel Tin Titanium Tungsten Zinc

Type of Milling Machines

Vertical Machining Centers

Cutters

Flat end mill Ball end mill Chamfer mill Face mill Twist mill Reamer Tap

Cutting Tools

High-speed steel (HSS) Carbide Carbon Steel Cobalt High Speed Steel

Axes

4

Type of Collet/ Adapter

Spindle – have a standardized spindle end Chuck – used to attach chucks to milling machines having a standard spindle end

Vise

Plain Swivel-type

Equipment Capabilities

Electric-drive motors Coolant systems Variable spindle speeds Power-operated table feeds High speed machining

Tolerances

Straightness : ± 0.001 Concentricity: ± 0.001 Diameter (outer/inner): ± 0.001 in Length (over _ in): ± 0.001 in

Length

: Max
60 in

Width

: Max
30 in

Height

: Max
24 in

Production Volume

Specialty Production Shop Prototype Low Volume Small Run High Volume Large Run Long Run

Lead Times Available

Quoted on job by job basis Emergency services available Rush Services Available

File Formats

AlphaCAM (AMD,ATD) AutoCAD (DWG,DWZ) BMP – Bit Mapped Graphics Catia (CATDrawing,CATPart) DXF – Drawing Interchange Format, or Drawing Exchange Format GIF – Graphics Interchange Format IGES – Initial Graphics Exchange Specification, ANSI file format. Inventor (IDW, IPT) IronCAD (ICD,ICS) JPG or JEPG – Joint Photographic Experts Group MasterCam (MCX, MC8, MC9, SET) PDES – Product Data Exchange using STEP, Standard for the Exchange of Product Model Data. A standard format for exchanging data between advanced CAD and CAM programs. PDF – Portable Document Format Pro-E or Pro/Engineer (DRW,PRT,XPR) SAT 3D ACIS Model File SolidEdge (DFT) SolidWorks (SLDPRT,SLDDRW,SLDDRT) STEP – Standard for the Exchange of Product Model Data SurfCam (DSN) TIFF – Tagged Image File Format TurboCAD (TCW,TCX)