Machinability of BN added Steels. (2nd Report). Influence of Chemical Compositions of Work Materials and Cutting Tools on Machinability.

八洲男, 山根; 隆太郎, 田中; 克彦, 関谷; 則彦, 鳴瀧; 哲夫, 白神

doi:10.2493/jjspe.66.229

Cited by 5 publications

(5 citation statements)

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“…Figure 9 shows the element distribution at the rake face of the ceramic tools after 5 min of cutting AISI 1045 and BN free-machining steel. The figure clarifies that the adhered element on the rake face was identified on the flank face when turning BN free-machining steel (4) . The specimens were washed with hydrochloric acid before observation.…”

Section: Journal Of Advanced Mechanical Design Systems and Manufactmentioning

confidence: 99%

“…The work materials used were AISI 1045 and BN free-machining steel based on AISI 1045. This BN free-machining steel has good machinability owing to the deposited layer called "belag" on the tool cutting edge, which acts as a diffusion barrier between the tool and work material (4) (5) . An experiment was conducted to investigate why an alumina TiC-based ceramic tool shows a remarkably better cutting performance than a pure alumina ceramic tool.…”

Section: Introductionmentioning

confidence: 99%

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Wear Characteristics of Ceramic Tools When Turning BN Free-Machining Steel

Tanaka

Hosokawa

Furumoto

et al. 2013

JAMDSM

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This study examined the wear characteristics of ceramic tools when turning BN free-machining steel based on AISI 1045. An experiment was conducted to investigate why the alumina TiC-based ceramic tool showed remarkably better cutting performance than a pure alumina ceramic tool. The tool flank temperature, cutting force, and element distribution on the wear part were investigated. The cutting force and tool flank temperature of the BN free-machining steel were lower than those of standard steel, and the alumina TiC-based ceramic tool allowed for a lower cutting force and tool flank temperature than the pure alumina ceramic tool. After cutting of the BN free-machining steel, on the rake face, a deposited layer containing Al and N was detected, and the amount of the deposited layer on the alumina TiC-based ceramic tool was more than that on the pure alumina ceramic tool. Therefore, using an alumina TiC-based ceramic tool suppresses the tool flank temperature and makes it easier for a protective nitride layer to stick on the wear part; as a result, it has a clearly superior tool wear resistance than an alumina ceramic tool.

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Section: Journal Of Advanced Mechanical Design Systems and Manufactmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Wear Characteristics of Ceramic Tools When Turning BN Free-Machining Steel

Tanaka

Hosokawa

Furumoto

et al. 2013

JAMDSM

Self Cite

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show abstract

“…So, the cutting test of BN free-machining steel was also carried out. This BN free-machining steel has good machinability, due to the deposited layer called "belag" on the tool cutting edge, which acts as the diffusion barrier between tool and work material [2], [3], [4]. Cutting test was perfumed at dry turning to evaluate the cutting performance of ceramic tools as alternative carbide tool materials.…”

Section: Introductionmentioning

confidence: 99%

Cutting Performance of Ceramic Tools in Turning of Mild Steel

Tanaka

Hosokawa

Furumoto

et al. 2012

KEM

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This study deals with the cutting performance of ceramic tools in turning of mild steel and BN free-machining steel based on it. The tool lives of ceramic tools in turning standard steel were less than 15 min at the cutting speed 250 m/min. On the other hand, the tool lives in turning of BN free-machining steel were obvious longer than that of standard steel. The tool life of TiC added alumina ceramic tool reached almost 10 hours in the case that the tool life criteria was set at VB=0.3mm. This tool life was twice as long as that of coated carbide tool.

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“…14,15) Thus, it is reasonable to believe that the soluble Al and N in the steel combine at the tool-chip interface as AlN due to temperature rise and deposit on the tool surface. Since it has been reported that the presence of AlN layer prohibits diffusion between tool and chip, 10) tool wear is reduced by the presence of AlN deposited layer.…”

Section: Fractionmentioning

confidence: 99%

“…[4][5][6] Nextly, deposition of AlN on the tool was reported to form for the samples containing BN. [7][8][9][10][11] Further, it was recently reported that the deposition of AlN can take place with the steels even without BN addition. 11,12) The deposition of VN can also be formed.…”

Section: Introductionmentioning

confidence: 99%