# Sovereignty Module: Forge the Edge

## Complete Blade Forging: From Steel to Sharp Edge

Blade making is the pinnacle of blacksmithing skill. This campaign covers steel selection, forging techniques, heat treatment, grinding, and handle making.

### Chapter 1: Steel Selection

| Steel Type | Carbon Content | Hardness Potential | Toughness | Ease of Forging | Best For |
|---|---|---|---|---|---|
| 1075 | 0.75% | Good (58-60 HRC) | Very good | Easy | Beginners, choppers |
| 1084 | 0.84% | Very good (60-62 HRC) | Good | Easy | General purpose knives |
| 1095 | 0.95% | Excellent (62-65 HRC) | Moderate | Moderate | Fine edges, razors |
| W2 | 0.95-1.1% | Excellent (63-66 HRC) | Good | Easy | Hamon line, fine knives |
| 5160 | 0.60% | Good (57-60 HRC) | Excellent | Easy | Swords, large blades |
| O1 | 0.95% | Very good (60-63 HRC) | Good | Easy | Precision tools |
| Damascus (pattern welded) | Varies | Varies | Good | Difficult | Decorative, premium |

### Chapter 2: Forging Process

| Step | Temperature | Color | Action | Tool |
|---|---|---|---|---|
| Drawing out | 1,800-2,100°F | Bright orange to yellow | Lengthen and thin the steel | Hammer, anvil |
| Tapering | 1,800-2,100°F | Bright orange to yellow | Create point/tip | Hammer, anvil |
| Beveling | 1,600-1,900°F | Orange | Form cutting edge geometry | Hammer, anvil |
| Straightening | 1,400-1,600°F | Dark orange to cherry | Correct warps and twists | Hammer, anvil |
| Tang forming | 1,800-2,100°F | Bright orange | Shape handle attachment | Hammer, anvil |
| Normalizing | 1,475°F (for 1084) | Cherry red | Refine grain structure | Air cool (3 cycles) |

Forging a knife (basic): 1) Start with bar stock (1084 steel, 1/4 x 1.5 x 8 inches). 2) Heat to bright orange (1,900°F). 3) Draw out the tang: hammer one end to 1/2 inch wide, 3-4 inches long. 4) Shape the blade: taper from spine to edge (leave edge 1/16 inch thick, no thinner). 5) Form the point: hammer tip to desired profile. 6) Straighten: check for warps, correct at dark orange heat. 7) Normalize: heat to cherry red (1,475°F for 1084), air cool. Repeat 3 times. 8) This refines grain structure (makes steel tougher). 9) Profile grind: grind to final outline shape before heat treatment. 10) Leave edge thick (1/16 inch minimum before hardening).

### Chapter 3: Heat Treatment

| Stage | Temperature | Medium | Purpose | Result |
|---|---|---|---|---|
| Hardening (quench) | 1,475°F (1084) | Warm oil (120-140°F) | Transform to martensite | Very hard, very brittle |
| Tempering | 375-450°F | Oven | Reduce brittleness | Hard but tough |
| Stress relief | 300°F | Oven (optional) | Remove residual stress | More stable blade |

Hardening procedure: 1) Heat blade evenly to critical temperature (1,475°F for 1084, non-magnetic). 2) Test with magnet: steel becomes non-magnetic at critical temp. 3) Quench edge-first into warm oil (parks 50 or canola oil at 120-140°F). 4) Move blade through oil in slicing motion (not still). 5) Hold in oil until cool enough to handle. 6) Test: file should skate off hardened steel (glass-hard). 7) If file bites, steel did not harden (re-heat, re-quench). 8) IMMEDIATELY temper (do not leave as-quenched; blade will crack).

Tempering: 1) Place hardened blade in oven at 400°F (for 1084). 2) Hold for 2 hours. 3) Remove, air cool. 4) Repeat (two temper cycles minimum). 5) Result: 59-61 HRC (hard enough to hold edge, tough enough not to break). 6) Lower temp = harder but more brittle. 7) Higher temp = tougher but softer. 8) 400°F is a good general-purpose temper for 1084.

### Chapter 4: Grinding and Finishing

| Grind Type | Cross Section | Difficulty | Best For | Edge Character |
|---|---|---|---|---|
| Flat grind | Flat taper to edge | Moderate | General purpose | Good slicer, easy to sharpen |
| Hollow grind | Concave | Moderate | Razors, fine slicing | Very thin, keen edge |
| Convex grind | Convex curve | High | Choppers, axes | Strong, durable edge |
| Scandi grind | Single bevel, flat | Low | Bushcraft, woodworking | Easy to sharpen in field |
| Chisel grind | One side flat, one beveled | Low | Specialty (Japanese style) | Very sharp, one-sided |

### Chapter 5: Handle Making

| Material | Durability | Grip | Weight | Cost | Appearance |
|---|---|---|---|---|---|
| Micarta | Excellent | Very good (textured) | Light | Moderate | Industrial/tactical |
| Stabilized wood | Very good | Good | Medium | Moderate-high | Beautiful, varied |
| G10 | Excellent | Very good | Light | Low-moderate | Tactical |
| Bone/antler | Good | Moderate | Medium | Low (found) | Traditional |
| Hardwood (natural) | Good | Good | Medium | Very low | Traditional |
| Leather (stacked) | Good | Very good | Medium | Low | Classic |
| Paracord wrap | Moderate | Very good | Very light | Very low | Survival/tactical |

### Reference Card

1. Leave the edge thick before hardening (grinding a thin edge before heat treatment causes warping and cracking; leave 1/16 inch minimum). 2. Non-magnetic means critical temperature (when a magnet no longer sticks to the steel, you've reached hardening temperature; this is your most reliable indicator). 3. Temper immediately after quench (as-quenched steel is glass-hard and glass-brittle; it will crack if you wait; temper within minutes). 4. Two temper cycles minimum (the second temper catches any untempered martensite that formed during cooling from the first temper). 5. Normalize before hardening (three normalizing cycles refine grain structure; fine grain = tougher blade). 6. Oil quench for carbon steel (water quench is too fast for most carbon steels and causes cracking; use warm oil). 7. Grind after heat treatment (final grinding and sharpening happen after the blade is hardened and tempered; this is when you create the cutting edge). 8. The blade is in the heat treatment (a perfectly forged blade with bad heat treatment is a bad knife; heat treatment is the most critical step).