ASME B5 refers to a technical committee of the

American Society of Mechanical Engineers The American Society of Mechanical Engineers (ASME) is an American professional association that, in its own words, "promotes the art, science, and practice of multidisciplinary engineering and allied sciences around the globe" via "continuing ...

and the

standard Standard may refer to: Symbols * Colours, standards and guidons, kinds of military signs * Standard (emblem), a type of a large symbol or emblem used for identification Norms, conventions or requirements * Standard (metrology), an object th ...

they maintain which deals with

machine tools A machine tool is a machine for handling or machining metal or other rigid materials, usually by cutting, boring, grinding, shearing, or other forms of deformations. Machine tools employ some sort of tool that does the cutting or shaping. All m ...

Machine tools

As a

Standards Development Organization A standards organization, standards body, standards developing organization (SDO), or standards setting organization (SSO) is an organization whose primary function is developing, coordinating, promulgating, revising, amending, reissuing, interpr ...

, ASME continues to develop and maintains nearly 600 codes and standards in a wide range of disciplines including pressure technology,

nuclear plants A nuclear power plant (NPP) is a thermal power station in which the heat source is a nuclear reactor. As is typical of thermal power stations, heat is used to generate steam that drives a steam turbine connected to a electric generator, generato ...

elevators An elevator or lift is a cable-assisted, hydraulic cylinder-assisted, or roller-track assisted machine that vertically transports people or freight between floors, levels, or decks of a building, vessel, or other structure. They are ...

escalator An escalator is a moving staircase which carries people between floors of a building or structure. It consists of a motor-driven chain of individually linked steps on a track which cycle on a pair of tracks which keep the step tread horizo ...

s, construction,

engineering design The engineering design process is a common series of steps that engineers use in creating functional products and processes. The process is highly iterative - parts of the process often need to be repeated many times before another can be entere ...

, and performance testing.

Machine Tool A machine tool is a machine for handling or machining metal or other rigid materials, usually by cutting, boring, grinding, shearing, or other forms of deformations. Machine tools employ some sort of tool that does the cutting or shaping. All m ...

standards are developed and maintained by ASME B5 Committee, which operates under ASME'
Board on Standardization and Testing
Th
B5 Standards Committee
currently meets once a year in various locations throughout the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

. The meeting is generally held in November and is open to the public. The B5 Technical Committees usually meet in conjunction with th
B5 Standards Committee
Some B5 Technical Committees also meet separately in different locations throughout the year. The B5 Standards Committee and its Technical Committees are composed of experts in the field of

machine tool A machine tool is a machine for handling or machining metal or other rigid materials, usually by cutting, boring, grinding, shearing, or other forms of deformations. Machine tools employ some sort of tool that does the cutting or shaping. All m ...

s. Members of the B5 Standards Committee are classified in the following interest classes: Producer/Manufacturer, Regulatory, Services, General Interest, and User. The B5 Committee works on writing new ASME

American National Standards The American National Standards Institute (ANSI ) is a private non-profit organization that oversees the development of voluntary consensus standards for products, services, processes, systems, and personnel in the United States. The organi ...

, and revising current ASME B5 an
B94 standards
The B5 Standards Committee operates under procedures of the

American National Standards Institute The American National Standards Institute (ANSI ) is a private non-profit organization that oversees the development of voluntary consensus standards for products, services, processes, systems, and personnel in the United States. The organi ...

(ANSI).

Machine shop in the Government Printing Office

History

The celebration of the 100th meeting in 2022 will mark the 100th consecutive year the ASME B5 committee has met. The following historical information marks only the beginning stages of copious collaborative work and continuous publication, review, and revision of ASME B5 Standards. On May 13, 1914, the ASME Committee on Meetings, Subcommittee on Machine Shop Practice began discussion on standardization of machine shop practices. It wasn't until September 1922 under the procedure of

American Standards Association The American National Standards Institute (ANSI ) is a private non-profit organization that oversees the development of voluntary consensus standards Standardization or standardisation is the process of implementing and developing techn ...

, the B5 committee was organized as a committee dedicated to machine tools. B5 was sponsored by the National Machine Tool Builders’ Association, the

Society of Automotive Engineers SAE International, formerly named the Society of Automotive Engineers, is a United States-based, globally active professional association and standards developing organization for engineering professionals in various industries. SAE Internatio ...

, Metal Cutting Tool Institute, an
The American Society of Mechanical Engineers
On December 2, 1937, the standard for Adjustable Adapters for Multiple Spindle Drilling Heads this standard was approved by the

and designated as American Standard (ASA B5.11-1937). Work on the standardization of T-slots started in 1924 and a tentative standard was published in 1927. The first official American Standard for T-slots came in 1941. B5 Technical Committee No. 11 was organized in New York on December 4, 1928, and B5 Technical Committee No. 4 on Spindle Noses was organized on December 5, 1928. These two committees worked in close cooperation with each other and with manufacturers and users of engine lathes,

turret lathe The turret lathe is a form of metalworking lathe that is used for repetitive production of duplicate parts, which by the nature of their cutting process are usually interchangeable. It evolved from earlier lathes with the addition of the ''turre ...

s and

automatic lathe In metalworking and woodworking, an automatic lathe is a lathe with an automatically controlled cutting process. Automatic lathes were first developed in the 1870s and were mechanically controlled. From the advent of NC and CNC in the 1950s, ...

s in developing standards for spindle noses and

chucks Chuck Taylor All-Stars or Converse All Stars (also referred to as "Converse", "Chuck Taylors", "Chucks", "Cons", "All Stars", and "Chucky Ts") is a model of casual shoe manufactured by Converse (a subsidiary of Nike, Inc. since 2003) that was ...

. B5 Technical Committee No. 3 on the Standardization of

Machine Tapers A machine taper is a system for securing cutting tool (machining), cutting tools or toolholders in the spindle (tool), spindle of a machine tool or power tool. A gender of connectors and fasteners, male member of cone, conical form (that is, wit ...

was appointed in August, 1926, and held its organization meeting in September, 1926, in New Haven, Conn. Three American tapers then in use, the

Brown & Sharpe Brown & Sharpe is a division of Hexagon AB, a Swedish multinational corporation focused mainly on metrological tools and technology. During the 19th and 20th centuries, Brown & Sharpe was one of the best-known and most influential machine tool build ...

(1860),

Morse Morse may refer to: People * Morse (surname) * Morse Goodman (1917-1993), Anglican Bishop of Calgary, Canada * Morse Robb (1902–1992), Canadian inventor and entrepreneur Geography Antarctica * Cape Morse, Wilkes Land * Mount Morse, Churchi ...

(1862), and Jarno (1889), and the taper series adopted by William Sellers & Co.(1862) were combined into a compromise standard series which contained twenty-two (22) self-holding taper sizes. The first edition of the Spindle Noses and Tool Shanks for Milling Machines standard, known as B5.18-1943, resulted from intensive effort dating back to 1926 by a special group of milling machine manufacturers. The effort to establish an American standard for Ball Screws began in July 1971 out of a need to obtain a consensus opinion relative to proposals for standardization of ball screw assemblies within the ISO/TC39 sub-committee Working Group 7. Out of this, the subcommittee TC43 was organized with members representing manufacturers, users of ball screws, and others of general interest. TC43 produced ANSI B5.48, which was approved as an American National Standard and published in 1977.

Charter

The charter of the ASME B5 Machine Tool Standards committee is "The standardization of machine tools, cutting tools and of the elements of machine tool construction and operation relating primarily to their use in manufacturing operations, includin

* Work and tool holding elements * Driving mechanisms that constitute an inherent part of the

* Components and associated

appurtenance An appurtenance is something subordinate to or belonging to another larger, principal entity, that is, an adjunct, satellite or accessory that generally accompanies something else.machine tool A machine tool is a machine for handling or machining metal or other rigid materials, usually by cutting, boring, grinding, shearing, or other forms of deformations. Machine tools employ some sort of tool that does the cutting or shaping. All m ...

elements * Parts and elements for adjusting, guiding, and aligning work or tools, including slots and tapes, but excluding, punches, dies and screw taps."

Technical subcommittees

Technical subcommittees under ASME B5 address the formulation and maintenance of standards in particular disciplines within the scope of the B5 charter. Membership includes a carefully balanced representation in various interest classifications so that no one group dominates. Some examples of the various interest classifications are: users, manufacturers, consultants, insurance interests, universities, testing laboratories, and government regulatory agencie

There are over 40 Standards that are periodically reviewed to ensure they reflect new developments and technical advances (e.g., new materials, new designs and new applications). Several new standards are under development or being considered in the areas of Tool Holder Interfaces, Machine Performance Evaluation, Micromachining, Energy Assessment, and Robotics. The current list (2015) of B5 subcommittees includes: TC 11 - Chuck (engineering), Chucks and Chuck Jaws TC 30 - Power Press Standards BallScrews-with-detail-insets

TC 43 - Ball Screws TC 45 - Spindle Noses and Tool Shanks for Machining Centers TC 52 -

Performance TC 54 - Tool Connection

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for

Machine Tools A machine tool is a machine for handling or machining metal or other rigid materials, usually by cutting, boring, grinding, shearing, or other forms of deformations. Machine tools employ some sort of tool that does the cutting or shaping. All m ...

TC 55 - Tool Identification Systems (

RFID Radio-frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. An RFID system consists of a tiny radio transponder, a radio receiver and transmitter. When triggered by an electromag ...

) TC 56 -

Information Technology Information technology (IT) is the use of computers to create, process, store, retrieve, and exchange all kinds of data . and information. IT forms part of information and communications technology (ICT). An information technology system (I ...

for

'
TC 65

- Micromachining
TC 94 -

Cutting Tools In the context of machining, a cutting tool or cutter is typically a hardened metal tool that is used to cut, shape, and remove material from a workpiece by means of machining tools as well as abrasive tools by way of shear deformation. The majori ...

ASME B5 also provides the
ANSI The American National Standards Institute (ANSI ) is a private non-profit organization that oversees the development of voluntary consensus standards for products, services, processes, systems, and personnel in the United States. The organi ...
-sanctioned Technical Advisory Groups to
ISO ISO is the most common abbreviation for the International Organization for Standardization. ISO or Iso may also refer to: Business and finance * Iso (supermarket), a chain of Danish supermarkets incorporated into the SuperBest chain in 2007 * Iso ...
regarding machine tool technology. These include

Technical Advisory to ISO TC39 Machine Tools

ISO TC39, SC2 – Test conditions for metal cutting machine tools

ISO TC39, SC4 – Woodworking machines ISO TC39, SC6 – Noise of

ISO TC39, SC8 – Work holding spindles and chucks ISO TC39, SC10 – Safety ISO TC39, WG 7 –

Ball screw A ball screw (or ballscrew) is a mechanical linear actuator that translates rotational motion to linear motion with little friction. A threaded shaft provides a helical raceway for ball bearings which act as a precision screw. As well as bein ...

s ISO TC39, WG9 – Symbols for indications appearing on

ISO TC39, WG 12 – Environmental evaluation of

ISO TC39, WG 16 – Production equipment for Microsystems

Technical Advisory to ISO TC29

ISO TC29, SC2 – Cutting tools and their attachments

References

{{ASME Standards of the United States Tools manufactured in the United States American Society of Mechanical Engineers American engineering organizations Organizations established in 1922 Machine tools