ScissorPedia

Cold Stamping (冷間プレス)

Manufacturing processes
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Follow a process claim from step to finished-tool scope

General metallurgy and a named factory claim are different evidence layers; preserve the material, step, actor, and exact product. Apply to Cold Stamping (冷間プレス)
PROCESS ≠ OUTCOME
Process name Material + step Factory evidence Finished-tool scope
  1. 01 Define Use the process term precisely and distinguish adjacent methods.
  2. 02 Place the step Record input material, sequence position, controls, and stated purpose.
  3. 03 Verify the actor Separate general process context from named factory documentation.
  4. 04 Bound the claim Attach any property or origin statement to the exact finished product.

Do not inferA forge, spark, hammer, heat, workshop, or process name cannot prove a scissor factory, alloy, temperature, grain flow, quality, or result.

Description

Cold stamping presses scissor blanks from steel sheet at room temperature. Learn how the process works and which finished-tool details to verify.

Cold Stamping (冷間プレス / reikan puresu)

Quick look

  • Process: Blanks cut from flat-rolled steel sheet using high-pressure dies at room temperature.
  • Key benefit: Fast, repeatable, low per-unit cost — ideal for high-volume production.
  • Cost position: Efficient for repeat production, though the finished retail price depends on many later steps.
  • Where used: One of several blank-forming methods used in volume scissor production worldwide.

Why it matters

Cold stamping is a common way to make scissor blanks at volume. A hydraulic or mechanical press cuts a repeatable profile from sheet steel without heating the blank for forging. Production rate and tooling depend on the press, die, material, and part design.

The forming method is only one part of the finished tool. Starting sheet, forming strain, heat treatment, grinding, blade geometry, assembly, and inspection all affect the result. A stamped label alone does not establish edge life, fatigue strength, or cutting quality.

How it works

  1. Sheet preparation: Flat-rolled steel coil or plate (typically 2-4 mm thick) is fed into the press.
  2. Blanking: A high-tonnage press drives a hardened die through the sheet, cutting out the scissor profile in a single stroke.
  3. Secondary forming: If the design includes offset handles or curved shanks, additional press operations bend the blank to shape.
  4. Deburring: Rough edges left by the die are ground or tumbled smooth.
  5. Heat treatment: The stamped blank proceeds to hardening and tempering — this step is critical, because it is the only opportunity to improve the metal’s mechanical properties.
Three technical panels show a generic shear-half outline in sheet stock, a local punch-and-die cutting section, and the useful solid blank separated from the surrounding sheet.
A representative blanking sequence, not a factory die design: blanking separates a useful outside profile from sheet or strip stock, while later piercing or forming may occur separately.

Trade-offs

  • Pros: Low cost, high speed, excellent dimensional consistency, minimal material waste (nested blanking layouts), easy to scale.
  • Cons: Shape options are constrained by sheet and die geometry, and the finished result still depends on careful heat treatment, grinding, assembly, and inspection.

Where you will find stamped scissors

Stamped blanks appear across a range of prices and applications. Retail price does not reliably identify the forming method, and forming method alone does not rank two finished scissors. Compare the exact material statement, heat treatment, geometry, inspection, fit, warranty, and service support.

What to ask a manufacturer

Do not infer stamping merely because a page does not mention forging. Ask how the exact blank is formed, which material and heat treatment apply, how the blade is ground and inspected, and what service guidance the maker provides.

See Also

Best shears for beginners →

References

Sources

1 source
  1. Razorline Hair Scissors — Official (manufacturer official)

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Quick clarifications

Frequently Asked Questions

3 answers you can open one at a time
Are stamped scissors automatically lower quality than forged ones?

No. A well-treated stamped VG-10 blank can outperform a poorly treated forged blank from the same alloy. Because cold stamping does not refine the grain structure, final performance depends entirely on the starting sheet steel quality and the subsequent heat treatment. The right question is not ‘stamped or forged?’ in isolation — ask what steel, what heat treatment specification, and what final inspection protocol the manufacturer uses.

Why is cold stamping so much cheaper than forging?

A hydraulic or mechanical press punches scissor-shaped blanks from flat-rolled sheet steel in seconds — no heating, no hammer, no individual shaping. A single stamping line can produce thousands of blanks per shift with minimal operator skill, and nested blanking layouts keep material waste low. The trade-off is that the grain structure stays exactly as it was in the rolled sheet, so the blank is shaped but not strengthened by the forming process itself.

What price range typically signals cold-stamped construction?

Price alone does not identify how a scissor blank was formed. Stamping is efficient for volume production, but retail price also reflects material, heat treatment, grinding, finishing, inspection, distribution, warranty, and service. Ask the maker about the exact model instead of inferring the process from price or silence about forging.

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Last updated: July 27, 2026 · by
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