scholarly journals Direct fabrication of high-performance high speed steel products enhanced by LaB 6

2016 ◽  
Vol 112 ◽  
pp. 469-478 ◽  
Author(s):  
Zhang Qiankun ◽  
Jiang Yao ◽  
Shen Weijun ◽  
Zhang Huibin ◽  
He Yuehui ◽  
...  
Keyword(s):  
High Speed ◽  
High Performance ◽  
High Speed Steel ◽  
Direct Fabrication

scholarly journals High Performance Gear Hobbing with powder-metallurgical High-Speed-Steel

Procedia CIRP ◽  
2012 ◽  
Vol 1 ◽  
pp. 196-201 ◽  
Author(s):  
Bernhard Karpuschewski ◽  
Hans-Joachim Knoche ◽  
Martin Hipke ◽  
Martin Beutner
Keyword(s):  
High Speed ◽  
High Performance ◽  
High Speed Steel ◽  
Gear Hobbing

scholarly journals High Performance Valve Seat Materials for CNG Powered Combustion Engines

Materials ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 4860
Author(s):  
Andrzej Romański ◽  
Elżbieta Cygan-Bączek
Keyword(s):  
High Speed ◽  
High Performance ◽  
Base Material ◽  
High Speed Steel ◽  
Wear Test ◽  
Gas Temperature ◽  
Valve Seat ◽  
Test Procedures ◽  
Gasoline Engines ◽  
Engine Valves

The conventional copper infiltrated high speed steel (HSS) valve seats used in gasoline engines are not suitable for CNG combustion because the exhaust gas temperature is at least 80 °C higher, which drastically shortens the service life of the engine valves. Therefore, a proprietary high-alloy HSS-base material was designed to combat hot corrosion and mechanical wear of valve seat faces in CNG fuelled engines. A batch of −100 mesh water atomized HSS powder was commissioned. The powder was vacuum annealed in order to reduce oxygen content and increase its compressibility. To improve the final part machinability, 1.2% MnS was admixed to the HSS powder prior to compaction. The green compacts were sintered at 1135 °C in nitrogen to around 83% TD and subsequently infiltrated with a copper alloy. After installing the valve seat components on a cylinder head, the engine was tested for 100 h according to the automotive industry valve seat wear test procedures. Both the periodic 8-h checks as well as the final examination of the valve seats showed very slow wear, indicating their suitability for CNG powered engines.

VANADIS 30

Alloy Digest ◽  
1999 ◽  
Vol 48 (1) ◽  
Keyword(s):  
Wear Resistance ◽  
Powder Metallurgy ◽  
High Speed ◽  
High Performance ◽  
High Speed Steel ◽  
Heat Treating ◽  
Positive Influence ◽  
Hot Strength ◽  
Cobalt Addition ◽  
Hot Hardness

Abstract Vanadis 30 is cobalt alloyed high-performance, high-speed steel made by powder metallurgy. The cobalt addition of approximately 8.5% has a positive influence on the hot strength, hot hardness, temper resistance, and modulus of elasticity. Punches are a suitable application for this alloy. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on wear resistance as well as heat treating and surface treatment. Filing Code: TS-566. Producer or source: Uddeholm Tooling AB.

scholarly journals Study of the processing of small diagnostic creations on a fluid sourcing by spiral survivals

2020 ◽  
Vol 6 (1) ◽  
pp. 14-21
Author(s):  
Roman Karpyk ◽  
◽  
Nazar Kostiuk ◽  
Keyword(s):  
Axial Force ◽  
High Speed ◽  
High Performance ◽  
Metal Cutting ◽  
Small Diameter ◽  
High Speed Steel ◽  
Drilling Process ◽  
Constructive Development ◽  
The Impact ◽  
Technological Methods

The article considers the features of the drilling process where there is a change in temperature, hole diameter, and displacement relative to the axis and the impact on the tool, when machining holes with high-speed steel drills there is wear of the transverse edge which is completely rounded to create a conical surface. There is a decrease in the negative value of the front corners on the transverse edge of the decrease in axial force, which led to a decrease in the intensity of wear of the transverse edge. In order of increasing axial force, respectively, and the intensity of wear of the transverse edge, were sharpened and recommended sharpening methods that provide high performance of the drill, the greatest stability, increased drilling accuracy, as well as the lowest cutting force. The analysis of influence of technological methods and ways and equipment on accuracy and quality of deep openings of small diameter is carried out. The effects of the method of lubricating coolant supply on the tool stability and processing productivity are investigated. The analysis of processing on the metal-cutting equipment with constructive development of the device is executed. Also, the stress-strain state of the drilling process by the finite element method with the analysis of external influences on the twist drill is carried out. The results of the research substantiate and recommend technological methods that reduce the deformation of the tool and, as a consequence, increase the quality and accuracy of the dimensions of deep holes of small diameter.

The Development of a High Speed Steel Based Sintered Material for High Performance Exhaust Valve Seat Inserts

1998 ◽  
Author(s):  
Hideaki Kawata ◽  
Koichiro Hayashi ◽  
Kei Ishii ◽  
Kunio Maki ◽  
Atsushi Ehira ◽  
...  
Keyword(s):  
High Speed ◽  
High Performance ◽  
Sintered Material ◽  
High Speed Steel ◽  
Exhaust Valve ◽  
Valve Seat ◽  
Valve Seat Inserts

BÖHLER S400

Alloy Digest ◽  
2019 ◽  
Vol 68 (5) ◽  
Keyword(s):  
Physical Properties ◽  
High Speed ◽  
High Performance ◽  
High Speed Steel

Abstract Böhler (or Boehler) S400 is a conventional high-speed steel for applications in machining. This datasheet provides information on composition, physical properties, and elasticity. It also includes information on forming. Filing Code: TS-765. Producer or source: Voestalpine High Performance Metals Corporation.

BÖHLER S705

Alloy Digest ◽  
2019 ◽  
Vol 68 (4) ◽  
Keyword(s):  
Physical Properties ◽  
High Speed ◽  
High Performance ◽  
High Speed Steel ◽  
High Hardness ◽  
Heat Treating ◽  
Red Hardness

Abstract Böhler (or Boehler) S705 is cobalt alloyed, tungsten-molybdenum high-speed steel possessing high hardness, excellent cutting properties, high red hardness, and good toughness. See also Alloy Digest TS-776, September 2019. This datasheet provides information on composition, physical properties, and elasticity. It also includes information on forming and heat treating. Filing Code: TS-761. Producer or source: Voestalpine High Performance Metals Corporation.

BÖHLER S590 MICROCLEAN

Alloy Digest ◽  
2018 ◽  
Vol 67 (8) ◽  
Keyword(s):  
Wear Resistance ◽  
Compressive Strength ◽  
Physical Properties ◽  
Dimensional Stability ◽  
High Speed ◽  
High Performance ◽  
High Speed Steel ◽  
Heat Treating ◽  
High Wear Resistance ◽  
Powder Metal

Abstract Böhler (or Boehler) S590 is a high-speed steel with high-wear resistance, high-compressive strength, very good through-hardening properties, good toughness, good dimensional stability on heat treat, and very good temper resistance. This datasheet provides information on composition, physical properties, and hardness. It also includes information on wear resistance as well as forming, heat treating, machining, and powder metal forms. Filing Code: TS-752. Producer or source: Voestalpine High Performance Metals Corporation.

Development of a New Tool Material to Ensure High Performance in Hot Steel Rolling

1999 ◽  
Vol 121 (4) ◽  
pp. 739-745
Author(s):  
Kenji Tsubouchi ◽  
Masayoshi Akiyama ◽  
Eiji Yamamoto ◽  
Toshiro Mase
Keyword(s):  
Tool Life ◽  
High Speed ◽  
High Performance ◽  
Tool Material ◽  
High Speed Steel ◽  
Structure Design ◽  
Metal Working ◽  
Hot Metal ◽  
Steel Rolling ◽  
Tool Surface

A new structure design was presented to prolong the tool life for hot metal working. The tool surface deteriorates quickly when attacked under continuous severe sliding conditions by hot metal at a temperature above 1473 K. Observations were made on guide shoes used in seamless tube rolling to reach the conclusion that enlargement of the size and change in the structure of chromium carbide prolong the tool life. This is contrary to the structure design of high-speed steel for which small carbide is recommended. The validity of the new tool was verified both in laboratory tests and in the production line.

Sign in / Sign up

Export Citation Format

Share Document