QUALITY – CERTIFICATIONS
- Tumedei is currently certified to ISO 9001:2015, IATF 16949:2016, ISO 14001, and ISO 45001.
QUALITY SYSTEMS
Tumedei operates a comprehensive system throughout the organization to ensure these standards are maintained.
The quality system includes:
- Experience with PPAP procedures and submissions.
- Process Error Correction, including Process Control Plans and Inspection Standards.
- Certified laboratories and in-house testing.
- Tooling includes Process FMEA, DOE, Gauge R&R, and 8D Problem Solving.
- Formal corrective action procedure for Root Cause Analysis.
- Formal investigation and corrective action process for Customer Complaints.
- Documented system for evaluation, approval, and monitoring of subcontractor partners.
QUALITY – PRECISION PARTS
Tumedei Spa has extensive experience in manufacturing both high and low-volume parts with strict control of critical dimensions and physical properties. The company has a proven capability to deliver precision parts with the following specifications:
- Dimensions tolerance: ±0.05 mm
- Hardness on finished components: ±2 points
- Compression set <10% on finished components (even at high temperatures)
This has been achieved through the following key requirements:
- Clearly identifying customer requirements and testing methods.
- Applying strict process control on material properties.
- Using small precision molds.
- Studying overall equipment production capability.
- Tight control of the production process, including Statistical Process Control (SPC).
- Measuring critical properties on finished parts.
- Possibility of automated inspection.
- Precision Parts.
QUALITY – ZERO DEFECTS
Tumedei’s operational steps to supply zero-defect products:
- Agreeing with the customer on critical properties and tolerances.
- Performing Process Failure Mode and Effects Analysis (PFMEA).
- Testing equipment/process on critical properties of samples from four corner cavities and one center cavity, and the ability to conduct a study for each property.
- Statistical Process Control (SPC) on each critical property for all five cavities.
- Automated inspection of finished products.
- Customer reporting on actual zero defects delivered by Tumedei.
QUALITY – TESTING EQUIPMENT
Tumedei has a well-equipped laboratory for testing elastomers, TPR, and engineering thermoplastics. Testing capabilities include:
- Tensile strength
- Tear strength
- Flexural modulus
- % Elongation
- Hardness
- Specific gravity
- Compression set and internal stresses
- Stress relaxation
- Fatigue life testing under flexural load
- High and low-temperature aging
- Fluid immersion aging
- Compound rheology
- CNC optical measurement systems
Non-contact measurement for Product Validation:
- Tesa Visio optical measurement device for rubber parts, equipped with a Renishaw TTP for plastic/metal parts.
- Accuracy: 3 microns
- The measurement process can be programmed for optimal repeatability..
Possibility of exchanging files with SolidWorks, allowing us to digitize parts.
In addition, to ensure the quality of finished parts, we use the following product-specific inspection and testing equipment:
- Membrane endurance testing with customer housing.
- Custom test bench for leak testing of membranes and/or molded seals.
- Burst pressure testing for reinforced fabric membranes.
- Determination of water absorption by capillary pressure on fabric-reinforced membranes.
- On-site automated visual inspection systems (Basler) at offshore O-ring production sites.
- On-site automated membrane testing for cavity/micropores at offshore production site.
- Seal pressure testing for control valves using both water and air (Gulf Rubber group).
- Flow rate testing for flow regulators (Gulf Rubber group).
- Durability and degradation testing for crankshaft alignment bushings (Gulf Rubber group).
- Durability testing for crankshaft sleeves (Gulf Rubber group).
- Flexural modulus testing for crankshaft sleeves (Gulf Rubber group).
