Milling is a process used to machine solid materials. Milling machines use a rotating milling cutter to produce machined surfaces by progressively removing material from a workpiece. The vertical milling machine can also perform the functions of a drill press due to the fact that the spindle is perpendicular to the table and can be lowered into the workpiece. However, a mill differs from a drill press, which holds the workpiece stationary and drill moves axially to penetrate the material, milling machines move the workpiece radially contacting the rotating milling cutter, which cuts on both its sides and end.

Milling machines can perform a wide variety of operations, from simple slot and keyway cutting, boring, racks and gears, fluting taps and reamers, planing and drilling to complex contouring and diesinking.

HDT has over 100 years of collective experience in their manual milling department. Manual milling can produce some of the most intricate and complex designs with uncompromised accuracy and is a great option for small run projects. Since manual milling requires incredible knowledge and skill on the part of the machinist, many shops have chosen to go with only computerized milling, which can cover most projects, but not all. Header Die & Tool employs some of the top machinists in the industry assuring that whatever your needs may be, HDT will not only meet, but exceed your expectations.

Over the years, technology has brought us computer numeric controlled (CNC) milling. The improvements that have come with this technology have been numerous, including alleviating errors, provide better quality, and deliver greater consistency, repeatability, and efficiency in the finished product. A CNC milling machine is a computer controlled vertical mill with the ability to move the spindle vertically along the Z-axis. This increase in mobility allows them to be used for diesinking, engraving, and 2.5D surfaces such as relief sculptures. CNC milling can also provide a cost-efficient alternative to most flat-surface hand engraving work. HDT has top-of-the-line software and equipment. Our machinists have the experience and knowledge to make your project a reality.

In addition to standard milling operations, the HDT milling department handles all surface, OD, ID and finish grinding. Surface grinding is used to attain a smooth finish on flat surfaces. This abrasive machining process uses a rotating wheel covered in rough particles known as a grinding wheel which cuts chips of metallic or non-metallic substance from the workpiece, making the surface of it flat and the side smooth.

From simple whistle notches to complex forms HDT has the know how to make it happen. Our milling department ranges from Bridgeports to a 4 axis 20,000 rpm high speed CNC milling center. Contact one of our knowledgeable sales representatives today to discuss your next project.