Value-Added Services for Metal Stamping & Fine Blanking

One Source. Complete Solutions.

Principal Manufacturing Corporation offers a full range of value-added services that support production from raw material through final assembly. By centralizing processes under one roof, we help reduce part handling, improve quality, and streamline delivery schedules.

Precision Machining and Grinding

Our automated CNC machining cells are built to handle secondary features that require tight tolerances and complex geometries. These systems support parts that begin with fine blanking or progressive metal stamping and are then precision-machined to meet exact fit and function requirements.

For applications requiring high flatness or parallelism, we offer double disc grinding capable of holding tolerances within 10 microns and surface finishes as fine as 5 RMS. This process often eliminates the need for lapping or polishing, saving time and cost.

Automated Assembly for Metal Stamping Components

Our team develops automated and semi-automated assembly processes tailored to part complexity and production volume. Services include:

Press-fit operations
Hardware insertion
Leak testing
Mechanical fastening
Plastic and metal part integration

These operations are designed to reduce internal labor requirements for customers while maintaining part consistency and throughput.

Welding Services for Stamped Metal Parts

We support a variety of welding applications across steel and non-ferrous materials.

Capabilities include:

Robotic MIG welding
Spot welding
Frame welding
Multi-weld stations for simultaneous joint creation

Joint quality is confirmed through rigorous test methods, including destructive, torque, push-out, and penetration testing.

Plastic Overmolding and Insert Molding

In cases where stamped or machined parts require plastic integration, we offer injection insert molding as a value-added step.

Overmolded features can provide:

Positional alignment for automation
Sound dampening
Functional design elements like guides or tabs
Color coding or surface texture for end-use

Insert molding improves structural performance while allowing for a consolidated part footprint.

Additional Secondary Operations

To support turnkey delivery and reduce the need for outside processing, we also perform a wide range of secondary operations in-house. These services complement our machining, welding, assembly, and overmolding capabilities and help customers shorten lead times while improving consistency.

Our additional in-house operations include:

Counterboring
Deburring
Drilling
Grinding
Milling
Orbital riveting
Staking
Tapping
Turning
Vibratory tumbling