Steel Shearing and waste minimizing

Steel Shearing Process in Surgical Instruments

ment Manufacturing

Steel shearing is one of the first and most important steps in the surgical instrument manufacturing process. Steel cutting according to order involves cutting large sheets or rods of stainless steel into precise, smaller blanks (raw shapes) that will later be forged, machined, or ground into surgical tools. You need experience drawing readers and mathematics professionals to distribute the steel with less waste and fast production.

Purpose of Shearing in Surgical Instrument Production

• Prepares raw material (typically 420, 440C, or 316L steel)

• Ensures consistent size and shape for further processing

• Reduces material waste and improves machining efficiency

Shearing Process Steps

1. Material Selection
   High-grade stainless steel (usually in rod or sheet form) is chosen depending on th

   e instrument type (cutting vs. clamping).

2. Marking & Measurement
   Steel is measured and marked according to specific design dimensions.

3. Shearing Operation
   Using hydraulic shearing machines or power shears, the steel is cleanly cut:

   • Straight cut for sheets

   • Rod cutting dies for cylindrical bars

4. Quality Inspection
   Sheared blanks are inspected for:

   • Flatness

   • Clean edges

   • Correct length and width

5. Storage or Direct Transfer
   The sheared pieces are either:

   • Stored for future forging/machining

   • Immediately moved to hot forging, cold forging, Laser Cutting  or CNC processing

 Importance in Surgical Manufacturing

 Rigor Instruments – In-House Steel Shearing Machinery

1. Hydraulic Guillotine Shear Machine

• Capacity: Up to 12mm thick stainless steel sheets

• Cutting Length: 2500–4000 mm

• Features: Precision CNC control, adjustable blade gap, back gauge system

2. Mechanical Shearing Machine

• Ideal for: Smaller blank production, lower thickness rods/sheets

• Cutting Thickness: 3–6 mm

• Benefits: High-speed operation and simple tooling

3. CNC Rod Cutting Machine

• For cutting stainless steel bars (420, 440C, 17-4 PH)

• Diameter Capacity: 6–50 mm

• Accuracy: ±0.1 mm

• Integration: Automated feed and chamfering

4. Angle Shearing Press

• Used for: Complex profiles and edge shaping before forging

• Pressure Capacity: Up to 60 tons

• Features: Adjustable shearing angles and dies

5. Circular Saw Rod Cutter

• Specialized for high-hardness stainless rods

• Cooling: Water-cooled system to avoid thermal stress

• Application: For precision cutting of instrument blanks

6. Notching & Corner Shear Machines

• Application: Preparing shaped blanks for custom instruments

• Materials: Thin stainless profiles or custom-cut blanks

 Rigor Instruments – Contact Information

• Company Name: Rigor Instruments

• Phone Number: +92 303 7759000

• Email: [email protected]

• Website: www.rigorinstruments.com