Cutting tool study: 21-6-9 stainless steel

Technical Report · Wed Jul 29 04:00:00 EDT 1992

DOI:https://doi.org/10.2172/7273296· OSTI ID:7273296

McManigle, A P

The Rocky Flats Plant conducted a study to test cermet cutting tools by performing machinability studies on War Reserve product under controlled conditions. The purpose of these studies was to determine the most satisfactory tools that optimize tool life, minimize costs, improve reliability and chip control, and increase productivity by performing the operations to specified Accuracies. This study tested three manufacturers' cermet cutting tools and a carbide tool used previously by the Rocky Flats Plant for machining spherical-shaped 21-6-9 stainless steel forgings (Figure 1). The 80-degree diamond inserts were tested by experimenting with various chip-breaker geometries, cutting speeds, feedrates, and cermet grades on the outside contour roughing operation. The cermets tested were manufactured by Kennametal, Valenite, and NTK. The carbide tool ordinarily used for this operation is manufactured by Carboloy. Evaluation of tho tools was conducted by investigating the number of passes per part and parts per insert, tool wear, cutting time, tool life, surface finish, and stem taper. Benefits to be gained from this study were: improved part quality, better chip control, increased tool life and utilization, and greater fabrication productivity. This was to be accomplished by performing the operation to specified accuracies within the scope of the tools tested.

• Research Organization: EG and G Rocky Flats, Inc., Golden, CO (United States). Rocky Flats Plant
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC34-90DP62349
• OSTI ID: 7273296
• Report Number(s): RFP-4552; ON: DE93001293
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101 -- Metals & Alloys-- Preparation & Fabrication
42 ENGINEERING
420200* -- Engineering-- Facilities
Equipment
& Techniques
ALLOYS
AUSTENITIC STEELS
CARBIDES
CARBON COMPOUNDS
CERMETS
CHROMIUM ALLOYS
COMPOSITE MATERIALS
CORROSION RESISTANT ALLOYS
CUTTING
CUTTING TOOLS
EVALUATION
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
LIFETIME
MACHINING
MANGANESE ALLOYS
MATERIALS
NICKEL ALLOYS
QUALITY ASSURANCE
RELIABILITY
SERVICE LIFE
STAINLESS STEEL-21-6-9
STEEL-CR21MN9NI6
STEELS
TOOLS