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You searched on: Author: thomas siewert

Displaying records 61 to 70 of 76 records.
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61. Estimation of Process Stability in the MAG Welding Process by Monitoring the Welding Parameters
Published: 11/1/2001
Author: Thomas A. (Thomas A.) Siewert
Abstract: This paper presents the distribution of the main welding parameters (welding voltage and welding current) for semiautomatic arc welding with the metal active gas (MAG) process, using both flux- cored and solid electrodes. Two different shielding fas ...

62. MSEL 2001 Programs and Accomplishments: Materials Reliability Division
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6795
Published: 9/1/2001
Authors: F R. Fickett, Thomas A. (Thomas A.) Siewert
Abstract: The materials Reliability Division's mission is to develop and disseminate measurement methods and standards enhancing the quality and reliability of materials and to provide technical leadership in their introduction to appropriate industries. Our ...

63. NIST Recommended Practice Guide: Installing, Maintaining, and Verifying Your Charpy Impact Machine
Series: Special Publication (NIST SP)
Report Number: 960-4
Published: 10/1/2000
Authors: D P Vigliotti, Thomas A. (Thomas A.) Siewert, Christopher N McCowan
Abstract: The quality of the data developed by pendulum impact machines depends on how well the machines are installed, maintained, and verified. This is the reason that ASTM Standard E23 Standard Test Methods for Notched Bar Impact Testing of Metallic Materi ...

64. Maintaining the Accuracy of Charpy Impact Machines
Published: 5/1/2000
Authors: D P Vigliotti, Thomas A. (Thomas A.) Siewert, Christopher N McCowan
Abstract: The quality of the data developed by impact machines tends to degrade over time, due to the effects of weear and vibration that are inherent in the test. This is the reason that impact standards specify periodic direct and indirect verification test ...

65. Ninth International Conference on Computer Technology in Welding, September 28-30, 1999, Detroit, MI
Series: Special Publication (NIST SP)
Report Number: 949
Published: 5/1/2000
Authors: Thomas A. (Thomas A.) Siewert, C Pollock
Abstract: This is the proceedings of the ninth conference in this series. It was held September 28 to 30, 1999, in Detroit, MI, under the sponsorship of the American Welding Society, NIST, and The Welding Institute. There were 57 papers grouped into sessions o ...

66. Secondary Ferrite Number Reference Materials: Gage Calibration and Assignment of Values
Series: Special Publication (NIST SP)
Report Number: 260-141
Published: 2/1/2000
Authors: Christopher N McCowan, Thomas A. (Thomas A.) Siewert, D P Vigliotti, C M Wang
Abstract: Ferrite Numbers (FN) were assigned to blocks of stainless steel that serve as secondary ferrite reference materials (RM 8480 and 8481), and these specimens were placed in our Reference Materials inventory. These reference materials are used to calib ...

67. Materials Science and Engineering Laboratory Materials Reliability: 1999 Programs and Accomplishments
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6434
Published: 1/1/2000
Authors: F R. Fickett, Thomas A. (Thomas A.) Siewert
Abstract: This document describes the 1999 Programs and Accomplishments of the Materials Reliability Division, Materials Science and Engineering Laboratory. The Materials Reliability Division addresses reliability issues across the full range of the national i ...

68. Performance Verification of Impact Machines for Testing Plastics
Series: Journal of Research (NIST JRES)
Published: 12/1/1999
Authors: Thomas A. (Thomas A.) Siewert, D P Vigliotti, L B Dirling, Christopher N McCowan
Abstract: Valid comparison of impact test energies reported by various organizations and over time depends on consistent performance of impact test machines. This paper investigates the influence of various specimen and test parameters on impact energies in t ...

69. The International Standards System and NDE
Published: 12/1/1999
Author: Thomas A. (Thomas A.) Siewert
Abstract: The globalization of manufacturing and construction markets is broadening the range of inspection standards that might be specified for a product, and we should prepare by learning more about the various organizations that develop such standards. Th ...

70. Welding Consumable Development for a Cryogenic (4K) Application
Published: 8/1/1999
Authors: S F Kane, A L Farland, Thomas A. (Thomas A.) Siewert, Christopher N McCowan
Abstract: This paper summarizes the development and qualification of an appropriate welding consumable for a demanding cryogenic magnet application. It begins with a review of the research conducted on cryogenic fracture toughness of wrought and welded austen ...

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Looking for a NIST Special Publication (NIST SP Series)? Place the series number and dash in the report number field (Example: 800-) and begin your search.

  • SP 250-XX: Calibration Services
  • SP 260-XX: Standard Reference Materials
  • SP 300-XX: Precision Measurement and Calibration
  • SP 400-XX: Semiconductor Measurement Technology
  • SP 480-XX: Law Enforcement Technology
  • SP 500-XX: Computer Systems Technology
  • SP 700-XX: Industrial Measurement Series
  • SP 800-XX: Computer Security Series
  • SP 823-XX: Integrated Services Digital Network Series