BALFORD.Metalworking engineering answers

Stamping and forming processes

What is the difference between blanking and piercing?

Answer

Blanking vs Piercing vs Notching: What Is The Difference? Blanking, piercing and notching are the same shearing action used three ways. What decides the tool, the tolerance and the burr on each one. The three words describe the same cutting action - a punch shears the material against a die - and differ only in what the cut is for.

ProcessStamping and forming processes
Material / topicblanking vs piercingblankingpiercing

Sources

  1. Blanking vs Piercing vs Notching: What Is The Difference
    Blanking vs Piercing vs Notching: What Is The Difference? Blanking, piercing and notching are the same shearing action used three ways. What decides the tool, the tolerance and the burr on each one. The three words describe the same cutting action - a punch shears the material against a die - and di...
  2. Blanking vs Piercing vs Notching: What Is The Difference
    Home › Blog › Metal Stamping Services Engineering Data · Stamping Blanking vs Piercing vs Notching: What Is The Difference? Published October 16, 2026 · Balford Technical Team The three words describe the same cutting action - a punch shears the material against a die - and differ o...
  3. Deep Drawn vs Progressive Stamping: Process Guide | Balford
    Industry Standards: Reference ISO 2768 for general tolerance guidance. If you're in automotive, medical, or aerospace, you'll typically need a quality management system certification like IATF 16949 or ISO 13485 to meet customer requirements. FAQ What is the difference between deep drawing and progr...
  4. OEM Progressive Dies for Carbon Steel Parts | Balford
    Home › Capabilities › Progressive Die Metal Stamping Progressive Die Stamping Capability Progressive Die Stamping for OEM Metal Parts Coil-fed progressive stamping for repeat-production metal parts, combining blanking, piercing, forming, drawing and secondary operations within one indexed tooling sy...
  5. Deep Drawn vs Progressive Stamping: Process Guide | Balford
    Progressive die stamping is a high-speed process where a continuous metal strip runs through a single tool with multiple stations. Each station performs a specific operation—blanking, piercing, bending, embossing, coining, or forming—so the part builds up step by step, and at the final station it's ...
  6. Double-sided Chamfered Washer Design Guide | Balford
    1. Determination of process flow : raw material inspection → cutting/blanking → piercing → double-sided chamfering → deburring → cleaning → inspection → packaging. 2.Selection of chamfering processing method: Cold stamping with dedicated tooling performs simultaneous or sequential chamfering on both...

What an engineer still needs from you

  • material and material condition (grade, temper)
  • material thickness, plus the key diameter, height and wall thickness
  • tolerances, burr direction and the visual acceptance standard
  • annual volume - it decides whether tooling is single-hit, progressive or transfer
  • surface finish, and any secondary machining, annealing or plating

Need a DFM feasibility assessment for your project?

Send the engineering drawing (STEP or PDF) with the material grade, thickness and annual volume. Balford engineers then check it against the process window - draw ratio, wall thickness, tolerances, blank and tooling route - and come back with what is feasible and what is not. An answer on this page cannot replace that review.

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This page is an engineering answer, not a quotation and not a dimensional acceptance. It is generated from Balford's published material and held to the verified company fact sheet.