A Study on Drilling Process Control by Intelligent Machine Tools (2nd Report)-Minimization of total machining time of drilling multiple holes considering the tool life-

Statistical process control (SPC) can help manufacturers improve the quality of their products. This paper describes a relatively simple and effective method and algorithm to adjust the accuracy of parts produced on CNC machine tools using the methods of statistical process control. Examined the possibilities of the proposed method by computer simulation of the process. By using the proposed algorithm scattering of size is placed in the middle of the tolerance zone. Various variants carrying out the method are proposed adequate on the machining time during processing details in the sample. This can optimize the total time for processing of the batch.

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PRODEC STAINLESS TYPE 316

Alloy Digest ◽

10.31399/asm.ad.ss0549 ◽

1993 ◽

Vol 42 (9) ◽

Keyword(s):

Physical Properties ◽

Tool Life ◽

Surface Finish ◽

Laboratory Testing ◽

Machining Time ◽

Aisi Type

Abstract PRODEC STAINLESS TYPE 316 is a standardized grade in plate and bar with an improved machining capability over the conventional AISI Type 316. It is a product of extensive laboratory testing and application proven. Its improved machinability offers: shorter machining time; longer tool life; better surface finish; less distortion problems; more homogeneity in microstructures; and marginally increased resistance to corrosion. This datasheet provides information on composition and physical properties. It also includes information on machining. Filing Code: SS-549. Producer or source: Avesta Sheffield Inc.

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PROJECT 70/PROJECT 7000 STAINLESS TYPE 303

Alloy Digest ◽

10.31399/asm.ad.ss0409 ◽

1997 ◽

Vol 46 (6) ◽

Keyword(s):

Fracture Toughness ◽

Corrosion Resistance ◽

Physical Properties ◽

Tensile Properties ◽

Tool Life ◽

Stainless Steels ◽

Heat Treating ◽

Machining Time ◽

Type Machine

Abstract Project 70 stainless type 303 and Project 7000 stainless type 303 are free-machining stainless steels of the austenitic chromium-nickel type. They offer significantly improved machinability and longer tool life. These steels are suited particularly for automatic bar-machine and Swiss-type machine operations where longer tool life results in more productive machining time. Applications include shafts, valve bodies, valves, valve trim, and fittings. This datasheet provides information on composition, physical properties, hardness, and tensile properties as well as fracture toughness and creep. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-409. Producer or source: Carpenter. Originally published June 1982, revised June 1997.

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Detektion von Bauteilfehlern aus Maschinendaten/Detection of workpiece flaws out of machine tool data – possibilities and limits

wt Werkstattstechnik online ◽

10.37544/1436-4980-2019-11-12-30 ◽

2019 ◽

Vol 109 (11-12) ◽

pp. 828-832

Author(s):

M. Weigold ◽

A. Fertig ◽

C. Bauerdick

Keyword(s):

Quality Assurance ◽

Machine Tool ◽

Machine Tools ◽

Machining Time ◽

Parallel Detection ◽

High Data ◽

Novel Approach ◽

Data Rates ◽

High Data Rates

Durch zunehmende Vernetzung und Digitalisierung von Werkzeugmaschinen und Automatisierungskomponenten ergibt sich die Möglichkeit, Signale mit hohen Datenraten und großer Vielfalt aufzuzeichnen. Der vorliegende Beitrag beschreibt erste Untersuchungen zur Realisierbarkeit einer prozessparallelen Detektion von Bauteilfehlern auf Basis interner Werkzeugmaschinendaten. Dabei werden Potenziale und Grenzen für diesen neuartigen Ansatz zur hauptzeitparallelen Qualitätssicherung aufgezeigt.   The increasing networking and digitization of machine tools and automation components provides the opportunity to record signals with high data rates and great diversity. This paper describes first investigations on the feasibility of a process-parallel detection of component defects on the basis of internal machine tool data. Potentials and limits for this novel approach to quality assurance parallel to machining time are presented.

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