Publication detail

Analysis of material for forming drills

DVOŘÁK, M. OSIČKA, K. KALIVODA, M.

Czech title

Analýza materiálu pro tvářené vrtáky

English title

Analysis of material for forming drills

Type

journal article in Scopus

Language

en

Original abstract

Tool material HSS is used for drills forming. The supplied material has enclosed from two separate batches the same certificate from the manufacturer. The material is in the standard CSN 419830. From one batch can be produced drills from the second cannot be produced. The article discusses the detailed analysis of the material. The differences are shown that are not listed in the attestation. Tests were performed for the customer available. Tests are not time consuming. Customer engaged in mass production usually does not have the possibility to detect differences. The customer usually does not have the necessary equipment. Made and recommended tests are based on metallographic knowledge, including hardness measurements, qualitative and quantitative chemical analysis. Data have graphical output. Elements are compared from the viewpoint of influence on hot formability. According to these collected data, the customer can assume the subsequent success of the production process.

Czech abstract

Nástrojový materiál HSS se mimo jiné používá pro výrobu vrtáků tvářením. Dodaný materiál má ze dvou nezávislých dávek od výrobce přiložen tentýž atest. Je sestaven z údajů v normě ČSN 419830. Z jedné dávky se dají vrtáky vyrobit, ze druhé ne. Článek tedy předkládá podrobnější rozbor materiálu. Jsou ukázány rozdíly, které atest neuvádí. Byly provedeny zkoušky dostupné pro zákazníka. Jde o jednodušší vybavenost, časovou nenáročnost a nejsou potřeba pracně zhotovené vzorky. Zákazník provozující sériovou výrobu zpravidla nemá možnost rozdíly složitě zjišťovat. Ani na to není vybaven. Zde provedené a doporučené zkoušky jsou založeny na metalografických znalostech, včetně měření tvrdosti a kvantitativní i kvalitativní chemické anylýze s grafickým výstupem. Porovnávají se obsažené prvky, které mají podstatný vliv na tvařitelnost. Dle těchto zjištěných údajů může zákazník předpokládat následnou úspěšnost výrobního procesu.

English abstract

Tool material HSS is used for drills forming. The supplied material has enclosed from two separate batches the same certificate from the manufacturer. The material is in the standard CSN 419830. From one batch can be produced drills from the second cannot be produced. The article discusses the detailed analysis of the material. The differences are shown that are not listed in the attestation. Tests were performed for the customer available. Tests are not time consuming. Customer engaged in mass production usually does not have the possibility to detect differences. The customer usually does not have the necessary equipment. Made and recommended tests are based on metallographic knowledge, including hardness measurements, qualitative and quantitative chemical analysis. Data have graphical output. Elements are compared from the viewpoint of influence on hot formability. According to these collected data, the customer can assume the subsequent success of the production process.

Keywords in Czech

HSS ocel, tvářený vrták, zkouška tvrdosti, karbid, chemická analýza.

Keywords in English

HSS steel, forming drill, hardness test, carbide, chemical analysis.

Released

16.11.2016

Publisher

MM Science Journal

Location

Praha

ISSN

1805-0476

Volume

2016

Number

5

Pages from–to

1313–1316

Pages count

4

BIBTEX


@article{BUT130100,
  author="Milan {Dvořák} and Karel {Osička} and Milan {Kalivoda},
  title="Analysis of material for forming drills ",
  year="2016",
  volume="2016",
  number="5",
  month="November",
  pages="1313--1316",
  publisher="MM Science Journal",
  address="Praha",
  issn="1805-0476"
}