CNC punching die Progressive Die Stamping

cuttingtungsten carbide

Product overview
Product: progressive die stamping tool
Materials: tungsten steel, die steel, CR12, 45#, 1.2363 (HITACHI SKD11 alternative), 1.2312 (Chinese SKD11 alternative)
Surface: heat treatment
Tolerance: 0.002 mm
Application: serial stamping of metal parts for industrial assemblies

Tool material
Punching holder: 45#
Punching plate: 45#
Punching material: 1.2363 (alternative: HITACHI SKD11)
Stripper plate material: 1.2312 (alternative: Chinese SKD11)
Bolster plate: CR12
Die holder: 45#
Die plate: Chinese SKD11
Die insert: 1.2363 (alternative: HITACHI SKD11)

Thickness specification for each plate
Punching holder: 50 mm
Die holder: 60 mm
Stripper plate: 25 mm
Bolster plate: 20 mm
Die plate: 40 mm
Punching plate: 25 mm

Punching machine specification
Mold closing height: not required as a special value; compatible with standard EU presses

WEDM
LS WEDM (recommended) or HS WEDM depending on feature detail; use LS for stripper plate and main die machining

Mold life cycle
Estimated life: ~3,000,000 cycles under recommended conditions

Technical detail

• Guiding pin dimension: use larger diameters where possible; minimum recommended Ø 5 mm
• Ensure reliable ejection path so stamped components fall free at final station
• Design for fully automatic operation without additional manual handling
• Fasteners: use Metric screws except where specified (e.g., fastening rod)
• Coil width tolerance: for material thickness > 3 mm follow tolerance of +0.3 mm

Manufacturing process

• Tooling design: develop 3D CAD models and validate form/fit/function
• CNC machining: rough and finish machining to net shape
• EDM machining: precise features and cavities
• Grinding: achieve required surface flatness and dimensions
• Polishing: improve surface finish for part release and life
• Quality control: dimensional inspection and hardness checks to ensure 0.002 mm tolerance
• Assembly: integrate inserts, plates and guiding elements
• Test production: pilot runs to validate tool performance and lifecycle

Technical specifications

• Product name: Progressive die stamping tool
• Brand: HLC Metal Parts Ltd
• Materials: tungsten steel, die steel, 1.2363 (HITACHI SKD11 alternative), 1.2312 (Chinese SKD11 alternative), CR12, 45#
• Surface treatment: heat treatment
• Tolerance: 0.002 mm
• Plate thicknesses: Punching holder 50 mm; Die holder 60 mm; Stripper plate 25 mm; Bolster plate 20 mm; Die plate 40 mm; Punching plate 25 mm
• WEDM method: LS (recommended)
• Mold life expectancy: approx. 3,000,000 cycles
• Recommended guiding pin size: ≥ 5 mm
• Screw standard: Metric
• Coil width tolerance (for thickness > 3 mm): +0.3 mm