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1
Knifemaking - How to make a knife bevel
Knifemaking - How to make a knife bevel
::2013/02/02::
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2
Knifemaking - a knife from old bearing
Knifemaking - a knife from old bearing
::2013/04/19::
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How to Choose Steel for Knife Making
How to Choose Steel for Knife Making
::2013/11/11::
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4
Knifemaking-Damascus steel knife
Knifemaking-Damascus steel knife
::2013/10/23::
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5
Knifemaking - A small knife is made
Knifemaking - A small knife is made
::2013/12/24::
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Making a custom knife for an Infantryman
Making a custom knife for an Infantryman
::2013/05/21::
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Knifemaking - knife from a wood saw
Knifemaking - knife from a wood saw
::2012/12/13::
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How to Make a Hunting Knife - Part 1
How to Make a Hunting Knife - Part 1
::2014/02/24::
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9
Knife Making Tutorial- How to FLAT GRIND A Knife (30 min Tutorial)
Knife Making Tutorial- How to FLAT GRIND A Knife (30 min Tutorial)
::2012/06/27::
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Jason Knight on making Mosaic Damascus for a knife.
Jason Knight on making Mosaic Damascus for a knife.
::2013/06/30::
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Bushcraft Knife Making How to make High Carbon Steel Handmade Knives Knifemaking Tutorial
Bushcraft Knife Making How to make High Carbon Steel Handmade Knives Knifemaking Tutorial
::2011/10/28::
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Knife Making Tutorial - LEARN from my mistakes- Tips, Tricks, Sales
Knife Making Tutorial - LEARN from my mistakes- Tips, Tricks, Sales
::2012/07/16::
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How to Make a Knife - Bushcraft Knife Making,1095 Steel Similar to a Condor Bushlore, Soup Can Forge
How to Make a Knife - Bushcraft Knife Making,1095 Steel Similar to a Condor Bushlore, Soup Can Forge
::2014/03/29::
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Making a Homemade Custom Knife
Making a Homemade Custom Knife
::2013/09/15::
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KnifeMaking Tutorial 1 of 2
KnifeMaking Tutorial 1 of 2
::2011/04/20::
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16
Making a custom knife in M390 Steel and Carbon Fiber by Bulgarian knife maker - Silverman
Making a custom knife in M390 Steel and Carbon Fiber by Bulgarian knife maker - Silverman
::2013/06/21::
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17
Making a knife with only common tools - time-lapse
Making a knife with only common tools - time-lapse
::2013/04/21::
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18
Knife Making Tutorial-  How to Hollow Grind a Knife
Knife Making Tutorial- How to Hollow Grind a Knife
::2012/06/28::
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19
Making a Celtic Knife with Trollsky
Making a Celtic Knife with Trollsky
::2014/01/16::
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20
Knifemaking. How to make a neck knife by Pearce Knives.
Knifemaking. How to make a neck knife by Pearce Knives.
::2014/03/31::
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21
The Birth Of A Tool. Part III. Damascus steel knife making (by John Neeman Tools)
The Birth Of A Tool. Part III. Damascus steel knife making (by John Neeman Tools)
::2012/12/25::
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22
knifemaking - making a knife from old file
knifemaking - making a knife from old file
::2011/08/28::
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23
Custom Knife Making Belt Grinder 72 Inch Homemade
Custom Knife Making Belt Grinder 72 Inch Homemade
::2013/11/24::
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How to Make a Knife - Part 1
How to Make a Knife - Part 1
::2013/11/05::
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Pusaka Rama - Traditional Indonesian Knife Making ( Pak Eep Surahman )
Pusaka Rama - Traditional Indonesian Knife Making ( Pak Eep Surahman )
::2010/01/17::
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26
Knife Making Tutorial- How to Make A Bowie Knife
Knife Making Tutorial- How to Make A Bowie Knife
::2012/06/07::
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27
Knifemaking Tuesdays Week 80 - Copper Inlay Awesomeness
Knifemaking Tuesdays Week 80 - Copper Inlay Awesomeness
::2013/12/20::
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28
Making A Knife Bevel Jig
Making A Knife Bevel Jig
::2014/02/04::
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29
Making a Large Custom Knife - Part 1 - Drawing&Cutting
Making a Large Custom Knife - Part 1 - Drawing&Cutting
::2012/09/06::
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30
Knifemaking tutorial - Making a knife with hamon
Knifemaking tutorial - Making a knife with hamon
::2012/01/07::
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31
Knifemaking Tuesdays Week 53 - ATC and other new tools
Knifemaking Tuesdays Week 53 - ATC and other new tools
::2013/01/03::
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32
Knifemaking Tuesdays Week 82 - sharpening and tumbling
Knifemaking Tuesdays Week 82 - sharpening and tumbling
::2014/01/22::
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33
Knife Making Tutorial - Post Heat Treat How to clean up your blades
Knife Making Tutorial - Post Heat Treat How to clean up your blades
::2012/07/04::
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34
Knifemaking Tuesdays Week 71 - Materials
Knifemaking Tuesdays Week 71 - Materials
::2013/08/14::
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35
Knife Making Tutorial- The American Wakizashi
Knife Making Tutorial- The American Wakizashi
::2012/06/10::
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36
Knife Making
Knife Making
::2008/07/07::
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37
Making A Knife From A Pry Bar
Making A Knife From A Pry Bar
::2014/03/15::
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38
Knife Making Tutorial-  LAST-DITCH Knife
Knife Making Tutorial- LAST-DITCH Knife
::2012/11/07::
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39
Knifemaking Tuesdays Week 81 - 3d printed integral
Knifemaking Tuesdays Week 81 - 3d printed integral
::2013/12/31::
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40
Custom cut wooden handle in knife making by thetopicala
Custom cut wooden handle in knife making by thetopicala
::2014/03/28::
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41
3 River Blades- Knife Making Batch Process Part 1
3 River Blades- Knife Making Batch Process Part 1
::2014/02/18::
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42
Knifemaking Tuesdays Week 40 - Phase one complete
Knifemaking Tuesdays Week 40 - Phase one complete
::2012/08/16::
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43
Knife making updates
Knife making updates
::2013/08/16::
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44
Knife Making Tutorial -  Handles, Sharpening and Finishing
Knife Making Tutorial - Handles, Sharpening and Finishing
::2012/10/17::
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45
Knifemaking Tuesdays Week 87 - textured carbon fiber inlays
Knifemaking Tuesdays Week 87 - textured carbon fiber inlays
::2014/04/10::
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46
Knife Making Tools Part 7 : Propane Forges
Knife Making Tools Part 7 : Propane Forges
::2013/01/04::
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47
Knifemaking - Knives made from scraps
Knifemaking - Knives made from scraps
::2012/07/03::
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48
Knife making tutorial part 3 - Heat treating
Knife making tutorial part 3 - Heat treating
::2012/09/16::
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49
Knifemaking Tuesdays Week 62  Blades and updates
Knifemaking Tuesdays Week 62 Blades and updates
::2013/04/30::
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50
Fazendo uma faca Puukko (knife making - puukko)
Fazendo uma faca Puukko (knife making - puukko)
::2012/12/10::
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From Wikipedia, the free encyclopedia
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Jere Davidson engraving a knife

Knife Making is the process of manufacturing a knife by any one or a combination of processes: stock removal, forging to shape, welded lamination or investment cast.[1] Typical metals used come from the carbon steel, tool, or stainless steel families. Primitive knives have been made from bronze, copper, brass, iron, obsidian, and flint.[1]

Materials for blades[edit]

Different steels are suited to different applications. There is a trade off between hardness, toughness, edge retention, corrosion resistance, and achievable sharpness. Some examples of blade material and their relative trade offs:

  • The newest powder metallurgy steels can be made very hard, but can quickly wear out abrasives and tooling.
  • A blade made from low carbon or mild steel would be inexpensive to produce and of poor quality. A low carbon blade would be very hard to break, but would bend easily and be too soft to hold an edge. High carbon (or high alloy, in some listings) can take a much higher hardness but must be tempered carefully after heat treatment to avoid brittleness.

Unusual non-metallic materials may also be used; manufacturing techniques are quite different from metal:

  • The natural volcanic glass obsidian can achieve a nearly molecular edge (high achievable sharpness) and only requires stone age technology to work,[2] but is so brittle that it cannot maintain that sharpness for very long. Also the entire blade is very easy to break by accident. Obsidian is used to make extremely sharp surgical scalpels.[3]
  • Ceramic knives hold their edge for a long time, but are brittle.

Blade making process[edit]

Initial forging[edit]

The initial shaping of a knife is done through forging or blanking.

When forging, the blade material is heated to a high temperature or forging temperature in a forge and shaped with a hammer on an anvil to achieve the desired shape, often to near final dimension, where very little stock removal, if any, is required to finish. Steel can be folded either to form decorative pattern welded steel or to refine raw steel, or as the Japanese call it, tamahagane. Grain size is kept at a minimum as grain growth can happen quite easily if the blade material is overheated.[4]

In a mass production environment, or in a well equipped private shop, the blanking process is used to make "blade blanks." This can be achieved by a number of different methods, depending upon the thickness of the material and the alloy content of steel to be cut. Thinner cross section, lower alloy blanks can be stamped from sheet material. Materials that are more difficult to work with, or jobs that require higher production volume, can be accomplished with water jet cutters, lasers or electron beam cutting. These two lend themselves towards larger custom shops. Some custom knife makers cut their blanks from steel using a metal-cutting bandsaw.

Knife makers will sometimes contract out to a shop with the above capabilities to do blanking. For lower production makers, or lower budgets, other methods must suffice. Knife makers may use many different methods to profile a blank. These can include hacksaws, files, belt grinders, wheel grinders, oxy-acetylene torches, CNC mills, or any number of other methods depending on budget.

Grinding[edit]

Edmund Davidson grinds a blade

If no power equipment is available, this can be done with files if the piece of steel has not yet been hardened. Grinding wheels, or small belt sanders are usually what a beginner uses. Well equipped makers usually use a large industrial belt grinder, or a belt grinder made specifically for knife making. Pre-polish grinding on a heat treated blade can be done if the blade is kept cool, to preserve the temper of the steel. Some knife makers will use a coolant mist on the grinder to achieve this.

Heat treatment[edit]

Methods of heat treatment: atmosphere furnace, molten salt, vacuum furnace, coal (coke) forge, oxy/acetylene torch. Quenching after heat treatment differs according to type of metal and personal preferences. Quenching can be done with oil, animal tallow, water, air, or brine.

Blade finishes[edit]

The finish quality of the blade is determined by the Grit of the finishing grind. These can range from a low-shine 150-250 grit finish to a mirror-shine. The high polish shine can be accomplished by buffing with chrome oxide (ex. white chrome, green chrome), hand rubbing with extremely fine wet-or-dry abrasive paper, or with a Japanese water-stone, which has an approximate grit of 10,000-12,000. Most high quality manufactured knives have about an 8000 grit finish.[citation needed]

Handle making process[edit]

References[edit]

  1. ^ a b Barney, Richard W.; Loveless, Robert W. (March 1995) [1977]. How to Make Knives. Knife World Publications. ISBN 0-695-80913-X. 
  2. ^ Hodgson, Susan Fox (2007). "Obsidian: sacred glass from the California sky". Myth and Geology. Geological Society of London. p. 308. 
  3. ^ Buck, BA (March 1982). "Ancient technology in contemporary surgery". The Western journal of medicine 136 (3): 265–269. ISSN 0093-0415. OCLC 115633208. PMC 1273673. PMID 7046256. 
  4. ^ Goddard, Wayne (2000). The Wonder of Knifemaking. Krause. pp. 107–120. ISBN 978-0-87341-798-3. 
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