From McGraw-Hill Machining and Metalworking Handbook, Third Edition


Machine tools and cutting tools have advanced in great strides in the past 50 years. What at one time was a difficult operation on a machine tool such as a lathe or milling machine has become commonplace and greatly simplified with the advent of microprocessor controls, advanced positioning and control techniques, and modern cutting tool materials. Chapter 1 described some of the modern equipment that is standard in many companies throughout the nation and the world. This chapter discusses other types of equipment, controls, and cutting tools, together with their applications to machining and metalworking practices.

Over the past 50 years, cutting tools have progressed from high-carbon steel, high-speed steel, cobalt matrix, and solid carbides to cemented or sintered carbides, ceramics, silicon nitride, cubic boron nitride, and special cutting tool coatings such as titanium nitride, titanium carbide, aluminum oxide, and others. The advantages of these new technologies in cutting tools have been increased production rates coupled with cost savings. Cutting tool technology is changing constantly, with new types of cutters, mills, drills, reamers, etc. being introduced to the market at a steady pace.

This chapter will show the latest types of cutting tools, together with the important speeds and feeds recommended for them. Also shown are the typical speeds and feeds for the popular and widely used high-speed-steel (HSS) and cobalt-matrix tools. The speeds and feeds tables for the various materials and machining methods are provided by the manufacturers who produce the cutting tools. Their research and development efforts,...

Products & Services
Reamers are rotary tools used for light material removal to deburr and size the inside diameter of holes.
Tool Grinding and Tool Sharpening Services
Tool grinding and tool sharpening services manufacture, recondition, regrind, and provide special profiling for cutting and machining tools.
Cutting Tool Inserts
Cutting tool inserts are replaceable attachments for cutting tools. They typically contain the actual cutting edge.
Carbides and Carbide Materials (hardmetals)
Carbides and carbide materials (hardmetals) have excellent wear resistance and high hot hardness. They are binary compounds of carbon and an element of lower or comparable electronegativity.
Plasma Cutting Equipment
Plasma cutting machines use a high-velocity, high-temperature ionized gas to make cuts in materials and parts.

Topics of Interest

8.1 Definitions Tooling. Tooling is a general term used to encompass many different processes involving the design and manufacture of special tools, dies, molds, jigs, and fixtures. The most common...

Overview Turning is a machining process for generating external surfaces by the action of a cutting tool on a rotating workpiece, usually in a lathe (Ref 3, p.135). Among various basic operations...

OVERVIEW A wide diversity of tools are in fact gathered under the words 'cutting tools', such as turning tools, drills, threading taps and dies, shaping, planing tools, scrappers, shaving tools and...

The cutting tool materials for machining of steels are high-speed steels, cemented carbides, cermets, ceramics, and polycrystalline cubic boron nitride. 2.1. High-Speed Steels According to Metals...

5.5 REAMING A reamer is a rotary cutting tool, either cyclindrical or conical in shape, used for enlarging drilled holes to accurate dimensions, normally on the order of 0.0001 in and closer. Reamers...