KD20 Precision Punch – Profile Grinding for Stamping Tooling

From Drawing to Reality

A precision punch starts with a drawing.

Dimensions, radii and profile geometry define what the finished component needs to be. The challenge is then to reproduce that geometry accurately in the actual component.

This KD20 precision punch is a good example of that process.

The critical punch geometry was finished by Profile Grinding (PG), allowing the required profile to be controlled directly from the drawing specification.

Product Overview

• Component: KD20 Precision Punch
• Application: Precision Stamping Tooling
• Main Process: Profile Grinding (PG)
• Material: KD20
• Features: Precision profile, controlled dimensions and surface finish

Technical Information

Item	Details
Component	KD20 Precision Punch
Application	Stamping Tooling
Material	KD20
Main Process	Profile Grinding
Geometry	Precision profile
Surface	Fine ground finish
Manufacturing	Custom according to drawing

Profile Grinding for Precision Punches

Profile Grinding is particularly useful for precision stamping components where the profile geometry itself is critical.

For this punch, the focus was not simply on producing the overall shape. The profile, transitions and dimensional requirements all needed to be controlled during the grinding process.

The result comes out with a clearly defined profile and controlled surface condition punch.

From Drawing to Finished Punch

The manufacturing process begins with the geometry defined on the drawing.

The critical profile is then reproduced through controlled Profile Grinding before the finished component is inspected against the required specifications.

This process can be especially valuable for stamping tooling components where profile accuracy and repeatability are important.

A drawing may look simple on paper.

Turning that geometry into a consistent physical component is where precision manufacturing begins.

Why Profile Grinding?

Different machining processes have different strengths.

For suitable punch geometries, Profile Grinding can provide direct control of the required profile while producing a fine surface finish on the finished component.

The appropriate manufacturing route depends on the geometry, material, tolerance and functional requirements of each component.

For this KD20 punch, we use Profile Grinding to achieve the required profile geometry and finish.

Precision Punches for Stamping Tooling

Precision punches are critical components in progressive dies and other stamping tooling applications.

Depending on the design, a precision punch may include:

• Complex profiles
• Radii and transitions
• Tight dimensional tolerances
• Small functional features
• Carbide or other wear-resistant materials

Controlling these features consistently is important for the final fit and function of the tooling component.

At Hepha Precision, we coordinate manufacturing routes according to the drawing, material and technical requirements, including Profile Grinding, Wire EDM, Sinker EDM and other precision processes when required.

From Drawing to Reality

This KD20 precision punch represents a simple idea:

The drawing defines the geometry.
The manufacturing process turns it into reality.

For precision stamping tooling, both parts of the process matter.