Rod ends with self-aligning ball bearings. Technical specification

The criteria of the coordinate measurements quality at pilot-experimental production based on contemporary methods of quality management system and traditional methods of the measurements quality in Metrology are considered. As an additional criterion for quality of measurements, their duration is proposed. Analyzing the problem of assessing the quality of measurements, the authors pay particular attention to the role of technological heredity in the analysis of the sources of uncertainty of coordinate measurements, including not only the process of manufacturing the part, but all stages of the development of design and technological documentation. Along with such criteria as the degree of confidence in the results of measurements; the accuracy, convergence, reproducibility and speed of the results must take into account the correctness of technical specification, and such characteristics of the shape of the geometric elements to be controlled, such as flatness, roundness, cylindrical. It is noted that one of the main methods to reduce the uncertainty of coordinate measurements is to reduce the uncertainty in the initial data and measurement conditions, as well as to increase the stability of the tasks due to the reasonable choice of the basic geometric elements (measuring bases) of the part. A prerequisite for obtaining reliable quality indicators is a quantitative assessment of the conditions and organization of the measurement process. To plan and normalize the time of measurements, the authors propose to use analytical formulas, on the basis of which it is possible to perform quantitative analysis and optimization of quality indicators, including the speed of measurements.

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Gamelan Melayu Sound Preservation and Archiving through Recording Methods and Production Techniques

ASIAN-EUROPEAN MUSIC RESEARCH JOURNAL ◽

10.30819/aemr.6-2 ◽

2020 ◽

Vol 6 ◽

pp. 17-40

Author(s):

Muralitheran Munusamy

Keyword(s):

Sound Production ◽

Dynamic Range ◽

Technical Specification ◽

Traditional Music ◽

Information Storage ◽

Social Scientists ◽

Audio Engineering ◽

Production Techniques ◽

Audio Data ◽

Music Recordings

Sound or audio engineering is a branch of the field of engineering, which involves the process of recording sound and reproducing it by various means, as well as storing in order to be reproduced later. Known as sound or audio engineers, these trained professionals work in a variety of sound production fields and expert in recording methods. They can be instrumental to implement the affordable technologies and technical process to distribute the audio data hence, making it accessible for future generations. The current role of these engineers not only to perform or limited to recording session but they create metadata for archiving and preservation for future needs. Currently, product sleeves of ethnographic recordings represent no technical elements of how traditional music recordings are produced. The product details focus only to some extent on historical elements and musical notation. To an audio archivist, declaring what devices are in a recording is not linked with preservation data. Apart from the format, the sleeved design, technical specification is essential to other social scientists such as audio engineer and field recordist of the future. The aim of the present research is to capture optimum dynamic range of the sound and applying a signal processing that would not alter the tonality, timbre and harmonic of the sound. Further applying a suitable information storage for the metadata to be preserve or archived for future accessing and reproduction.

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AISI TYPE 440B

Alloy Digest ◽

10.31399/asm.ad.ss0223 ◽

1969 ◽

Vol 18 (4) ◽

Keyword(s):

Fracture Toughness ◽

Stainless Steel ◽

Corrosion Resistance ◽

Heat Treating ◽

Chromium Steel ◽

Ball Bearings ◽

High Carbon ◽

High Chromium ◽

Steel Mills ◽

Aisi Type

Abstract AISI Type 440B is a hardenable high-carbon high-chromium steel recommended stainless for cutlery, valve parts, ball bearings, pivot pins, etc. This datasheet provides information on composition, physical properties, microstructure, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SS-223. Producer or source: Stainless steel mills.

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