B5.54 standard up to CAT work.Using the ANSI (American National Standards Institute, New York, www.ansi.org) A membership organization founded in 1918 that coordinates the development of U.S. voluntary national standards in both the private and public sectors. It is the U.S. member body to ISO and IEC. B5.54 standard in its R&D efforts, Caterpillar caterpillar (kăt`əpĭl'ər, kăt`ər–), common name for the larva of a moth or butterfly. Caterpillars have distinct heads and are segmented and wormlike. Inc has avoided acceptance of new machines that were underperforming, detected faulty components in new machines prior to acceptance, provided a basis for machine tool maintenance and rebuilding projects, and significantly reduced scrap and waste, William Feuchter, division manager-manufacturing and logistics at Caterpillar's Aurora Aurora, cities, United States
Aurora (ərôr`ə, ô–).
1 City (1990 pop. 222,103), Adams and Arapahoe counties, N central Colo., a growing suburb on the east side of Denver; inc. 1903. , IL, plant told AMT See vPro. - The Association For Manufacturing Technology's Technology Conference earlier this year. Getting the best performance possible out of its machines involves a series of steps that begin with testing the machine at the builder's plant followed by continuous monitoring and evaluation while the machine is in production.
Caterpillar's R&D supports improvements by investigating new process technologies, developing process modeling and simulation techniques, working on thermal compensation, and monitoring machine accuracy and reliability. The latter point - monitoring and quantifying machine accuracy and reliability - is where ANSI B5.54 comes in. It addresses the 50% of workpiece Noun 1. workpiece - work consisting of a piece of metal being machined
piece of work, work - a product produced or accomplished through the effort or activity or agency of a person or thing; "it is not regarded as one of his more memorable works"; "the symphony was errors that are attributable to the machine. ANSI B5.54 consists of a suite of tests focusing on four major areas: 1) environmental tests Environmental tests are used to verify a piece of equipment can withstand the rigors of harsh environments, for example:
Mr Feuchter believes that the B5.54 standard has application across the entire life of the machine tool. It can be used to "footprint" the machine early on, provide information about its performance during its production life, and even help quantify it and possibly add value once the machine is to be disposed of through resale. Caterpillar is using the technique to evaluate machines for acquisition by comparing machine tool capability among different builders; to develop specifications and acceptance criteria; to quantify production performance periodically, and to solve problems and determine maintenance needs. In addition, suppliers of purchased components are being asked to monitor their machines as well. Caterpillar's first use of B5.54 was for buying machining centers. In the past, acceptance was based on machining large quantities of parts the machine was purchased to make, today the company is asking its purchasing units to accept machines based on their capability to perform across an entire work zone.
The basic quality tools used to measure performance under ANSI B5.54 are the telescoping telescoping The 'compression' or overlapping of clinical or pathologic features of a disease or lesion that is normally subdivided into chronologic stages of progression ballbar, spindle spindle: see spinning.
A rotating shaft in a disk drive. In a fixed disk, the platters are attached to the spindle. In a removable disk, the spindle remains in the drive. Laptops use spindle designations to indicate the number of built-in drives. dynamic analyzer analyzer /ana·ly·zer/ (an´ah-li?zer)
1. a Nicol prism attached to a polarizing apparatus which extinguishes the ray of light polarized by the polarizer.
2. , and the 5D laser. The spindle dynamic analyzer evaluates the spindle's bearing condition, including run out and thermal growth errors - errors that are important as they contribute to form and surface texture problems on components. Approximate cost: $20K
The telescoping ballbar has gained the most acceptance because it can quickly check a machine's performance without removing the piece part from the fixture An article in the nature of Personal Property which has been so annexed to the realty that it is regarded as a part of the real property. That which is fixed or attached to something permanently as an appendage and is not removable. , can be easily used by the operators, and software directs repairs from a prioritized list of machine problems. The ballbar has significant advantages over the artifacts artifacts
see specimen artifacts. such as mechanical squares, tests a much greater range of characteristics, is portable, and easy to use. Approximate cost: $6K
The 5D laser is much more efficient than conventional lasers in that it requires only one setup and one pass to measure five errors - compared with five setups and five passes. Significant time savings, days can be cut from the evaluation process. Approximate cost: $40K. Acceptance of B5.54 thus far has been good. Next, the company intends to develop its use for lathes and grinders.