Heat Treatment Effects on CPM-M4 Tool Steel Performance as Edged Blade Material PDF Download
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Author: Sidi Lian
Publisher:
ISBN:
Category : Blades
Languages : en
Pages : 84
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Book Description
CPM-M4 tool steel is a commonly used knife blade material due to its high strength and wear resistance. The goal of this thesis is to understand how heat treatment parameters affect blade performance and microstructure. Five heat treatments were applied to CPM-M4 steel by varying austenitizing and tempering temperatures. The microstructures were examined by optical microscopy, scanning electron microscopy and limited amounts of energy-dispersive X-ray spectroscopy. The carbide fraction, size, count, spacing and chemistry were characterized from the microstructural analysis. Blade performance was examined by hardness, 3-Point bend, impact, and CATRA (edgeretention) testing. The results show that the austenitizing temperature is a significant factor that affects all mechanical properties tested. The max load in 3-Point bend test increases with the carbides fraction that can be maximized by controlling austenitizing temperature. Both austenitizing temperature and tempering temperature have significant effects on the hardness. As for the impact performance, the impact toughness increases with the carbides density. Additionally, we can achieve comparatively high impact toughness in low austenitizing temperature without decreasing hardness through lowering the tempering teperature, because tempering temperature has no significant effect on impact toughness. The edge retention of CPM-M4 steel relates to its hardness. Harder materials can provide a better edge retention for knife blade.
Author: Sidi Lian
Publisher:
ISBN:
Category : Blades
Languages : en
Pages : 84
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Book Description
CPM-M4 tool steel is a commonly used knife blade material due to its high strength and wear resistance. The goal of this thesis is to understand how heat treatment parameters affect blade performance and microstructure. Five heat treatments were applied to CPM-M4 steel by varying austenitizing and tempering temperatures. The microstructures were examined by optical microscopy, scanning electron microscopy and limited amounts of energy-dispersive X-ray spectroscopy. The carbide fraction, size, count, spacing and chemistry were characterized from the microstructural analysis. Blade performance was examined by hardness, 3-Point bend, impact, and CATRA (edgeretention) testing. The results show that the austenitizing temperature is a significant factor that affects all mechanical properties tested. The max load in 3-Point bend test increases with the carbides fraction that can be maximized by controlling austenitizing temperature. Both austenitizing temperature and tempering temperature have significant effects on the hardness. As for the impact performance, the impact toughness increases with the carbides density. Additionally, we can achieve comparatively high impact toughness in low austenitizing temperature without decreasing hardness through lowering the tempering teperature, because tempering temperature has no significant effect on impact toughness. The edge retention of CPM-M4 steel relates to its hardness. Harder materials can provide a better edge retention for knife blade.
Author: Cody P. Fast
Publisher:
ISBN:
Category : Carbides
Languages : en
Pages : 77
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Book Description
Variations in heat treatments have significant effects on the microstructure of tool steels. For CPM-M4 tool steel, the changes in microstructure and mechanical properties were observed based off of variations in temperature. Five heat treatments with constant exposure time and variable austenitizing and tempering temperatures were performed on samples of the CPM-M4. During heat treatment, tool steels undergo microstructural transformations where carbides made up of primary alloying elements are created and grown while the surrounding matrix of material undergoes phase transformations. Using SEM, EBSD, and ImageJ analysis software, the phase fractions of the final microstructure for each treatment was quantified and compared. Changes in mechanical properties were assessed by macro- hardness and nanoindentation. Based on the data, a maximum hardness was achieved for samples with an austenization temperature of 2200°F and a tempering temperature of 925°F. This highest hardness did not correspond to the highest fraction of the hardened carbide and martensite phases. This is due to interactions between both the phases present in the matrix as well as the size and distribution of the carbides.
Author: Harry Brearley
Publisher:
ISBN:
Category : Steel
Languages : en
Pages : 188
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Book Description
Author: Larrin Thomas
Publisher:
ISBN: 9781087902159
Category :
Languages : en
Pages : 282
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Book Description
An in-depth exploration of the effects of different steels, heat treatments, and edge geometries on knife performance. This book provides ratings for toughness, edge retention, and corrosion resistance for all of the popular knife steels. Micrographs of over 50 steels. Specific recommended heat treatments for each steel. And answers to questions like: 1) Does a thinner or thicker edge last longer? 2) What heat treatment leads to the best performance? 3) Are there performance benefits to forging blades? 4) Should I use stainless or carbon steel? All of these questions and more are answered by a metallurgist who grew up around the knife industry.
Author: Steve Thompson
Publisher: Elsevier
ISBN: 1855738325
Category : Technology & Engineering
Languages : en
Pages : 216
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Book Description
This book covers an important and frequently overlooked area of welding - the repair of moulds, tools and dies. Because two rather different trades overlap in this process - welding and toolmaking, the materials and techniques involved have tended to be obscured. For many years, toolmakers and tool users have had to rely on the small number of specialist welders who do understand exactly what welding repair involves and have the skills to carry it out.Understanding the technical side of tool steels is frequently a problem for welders and understanding the practical side of welding can be a problem for machinists. This book has been written so that specialists from both sides can get to grips with the techniques and procedures involved.The Handbook of mould, tool and die repair welding is designed to save companies time and money by: - Acting as a training aid so that repairs can be carried out in-house - Reducing the need to send work out and the costs involved - Reducing the production time lost when repairs are required - Providing clear diagrams and a user-friendly style to make the techniques easily understoodIt is an essential resource for Tool Room Managers and Foremen as well as maintenance and repair welding specialists. - Comprehensive tool metal welder's reference work - Written for the shop floor, by the shop floor - Practical, easy to understand techniques designed to save time and money
Author: MFAROUK -Mohamed Farouk Ahmed
Publisher: MFAROUK - Mohamed Farouk Ahmed
ISBN: 9779055797
Category : Technology & Engineering
Languages : en
Pages : 152
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Book Description
This is study on tool steel pacification and heat-treatment for all type of wear resistance steel and specially our D3 steel. Supported with value review. This research “theoretical and experimental” in Effect of Heat-treatment “hardening temperature, tempering temperature, and cooling rate“ in the Mechanical property “Hardness”, and Microstructure transformation on Tool Steel, all type of wear resistance steel, and specially D3 steel. The research study heat-treatment for two pieces of D3 die steel "Working at cone pulleys for nail manufacture" to modify there mechanical properties. The classification its type, properties and set on condition effect on it was discussed. Two set of experiments were done one to determine the effect of austenitization temperature and tempering temperature on the mechanical properties "hardness" and another "the basic one" to discuses improving its mechanical properties from view of microstructure transformations "type, amount, and properties" for each heat-treatment stage. This study was APPROVED as my BS graduate project from Metallurgy Engineering Collage, Cairo University 2001, and published after addition in experimental review at 2018.
Author: Roger Eckstine
Publisher: Simon and Schuster
ISBN: 1620873095
Category : Sports & Recreation
Languages : en
Pages : 609
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Book Description
The new Shooter’s Bible Guide to Knives sets the standard for comprehensive publications by carrying on the Shooter’s Bible tradition of bringing together more products and information than any other source. With photographs and descriptions of more than 400 knives, readers are treated to product highlights from major manufacturers and custom knife makers. This book brings you from the blacksmith shop to high tech influential designers with insights into blade steel, locking mechanisms, and handle materials. When it comes to knives, this book is the source for the products and the passion.
Author: Philip Mitchell
Publisher: Society of Manufacturing Engineers
ISBN: 0872634566
Category : Technology & Engineering
Languages : en
Pages : 695
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Book Description
This volume focuses on the practical application of processes for manufacturing plastic products. It includes information on design for manufacturability (DFM), material selection, process selection, dies, molds, and tooling, extrusion, injection molding, blow molding, thermoforming, lamination, rotational molding, casting, foam processing, compression and transfer molding, fiber reinforced processing, assembly and fabrication, quality, plant engineering and maintenance, management.
Author: Erhard Klar
Publisher: ASM International
ISBN: 1615030522
Category : Technology & Engineering
Languages : en
Pages : 247
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Book Description
Author: Vadim Kraichuk
Publisher: Knife Grinders
ISBN: 179626458X
Category : Technology & Engineering
Languages : en
Pages : 84
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Book Description
6th edition. Our fundamental research into the knife edge that changed the mindset of the international sharpening community. Our knife sharpening computer software and gadgets are used in 64 countries, as of today.
