Quality Control

Inspection of Incoming Materials
All purchased products that are incorporated into DSW final products are subject to a detailed technical Quality Control (Q.C.) inspection. Material certifications are kept on file for all incoming shipments of thermoplastic resins.
● New Part Qualification
Before a new part can be released to production, it goes through a qualification process that varies in intensity depending on customer requirements, engineering complexity and quality constraints. The qualification methods may include some or all of the following:

 First Article Inspection.
● Pre-production runs to produce a limited number of samples.
● Process Capability Study.
● ECN Release to Production after customer approval.

● Production Part Approval Process (PPAP).


● Production Monitoring & Verification
Throughout the production cycle, plastic injected molded components and assemblies are checked to verify their compliance with all required specifications. Typical verification and inspection processes include dimensional, functional and/or destructive tests.

● Monitoring of the Quality System
To ensure compliance and continual improvement, our quality assurance system is monitored through a variety of techniques, as appropriate for a particular process and its importance. These include:
Conducting internal audits of the quality system.
Monitoring trends in corrective and preventive action requests.
Analyzing product conformity and other quality performance data and trends.
Measuring and monitoring customer satisfaction through periodic surveys.
● Measurement & Testing
Our Inspection Lab ( 3rd party)features state-of-the-art equipment to ensure compliance with the most demanding part and assembly specifications and tolerances:

Brown & Sharp Microval Coordinate Measuring Machine (CMM) with Quadra-Check? 3D software.
OGP Optical Comparator with Smart Edge Detection.
Additional standard measuring/testing devices such as calipers, micrometers, thread & height gages, surface plates, etc.

Work Time


8:00 - 18:00

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