Subcontract Service
Flat Lapping
Flat lapping is a controlled abrasive process that produces exceptionally flat, parallel surfaces with superior finishes unattainable through conventional machining methods.
At Prime Surfacing Solutions, we utilise precision lapping techniques to achieve flatness measured in light bands and surface finishes below Ra 0.1 microns. Our expertise spans prototype development through to high-volume production runs.
The Process
What is Flat Lapping?
Flat lapping removes material through the action of loose abrasive particles suspended in a liquid vehicle, applied between the workpiece and a precision lap plate.
Unlike grinding which uses bonded abrasives, lapping's free-cutting action generates minimal heat and stress, preserving component integrity whilst achieving geometric accuracy measured in millionths of an inch.
The result is a surface that is not only dimensionally precise but also free from the subsurface damage associated with more aggressive material removal processes.
Assessment
We evaluate your component geometry, material properties, and required tolerances to determine the optimal lapping strategy.
Preparation
Components are cleaned and inspected. We select appropriate abrasive compounds and plate materials for your specific requirements.
Lapping
Using controlled pressure and precision abrasives, material is removed uniformly until target flatness and finish are achieved.
Verification
Every part undergoes interferometric measurement and detailed inspection before dispatch, with full documentation provided.
Our Work
Example Projects
Material Expertise
We Lap Everything
From common engineering metals to advanced technical ceramics, our processes are optimised for each material's unique characteristics.
Metals
- Tool Steels
- Stainless Steel
- Hardened Steel
- Titanium Alloys
- Inconel
- Aluminium
Ceramics
- Alumina (96-99.6%)
- Silicon Carbide
- Silicon Nitride
- Zirconia
- Aluminium Nitride
Other
- Tungsten Carbide
- Fused Silica
- Sapphire
- Quartz
- Glass
- Composites
Sectors We Serve
Industry Applications
Our flat lapping services support critical applications across multiple high-precision industries.
Aerospace & Defence
- Fuel system seals
- Hydraulic valve faces
- Actuator components
- Gyroscope elements
Motorsport & Automotive
- Fuel injection parts
- Transmission components
- Turbocharger seals
- Brake system parts
Medical & Scientific
- Surgical instruments
- Implant surfaces
- Laboratory equipment
- Optical mounts
Industrial & Energy
- Pump seal faces
- Compressor valves
- Bearing surfaces
- Gauge blocks
Why PSS
The Prime Advantage
Precision Guaranteed
Every component is measured using calibrated interferometry equipment with full traceability to national standards.
Rapid Turnaround
Dedicated capacity for urgent requirements. We understand that downtime costs money and respond accordingly.
Quality Assured
Rigorous processes ensure consistent quality and complete documentation with full traceability.
Delivering precision surface finishing solutions to UK industry leaders since establishment.
Let's discuss your lapping requirements
Whether you need a single prototype or ongoing production support, our technical team is ready to help you achieve the precision your application demands.