Quality

Winhoo Group Quality Control

Quality is Everything

To bring that goal within reach, our precision machining factory continuously improves the quality of all our services and capabilities. We leverage our most important resource—our people—to understand and improve our processes every day. Our management team provides the best tools available:Material identification, quality inspection and testing.

Winhoo group has a passionate commitment to product quality. From the validation of raw materials to the final pre-ship inspection of finished goods, we eat, breathe, and sleep quality. Superior quality is not just a goal or process, it is our culture. Every worker understands that the Customers’ success and ours depends on our ability to consistently produce products of the highest quality.Further more, we will monitor every project step for quality assurance:
Design review for all manufacturing quotation
Contract review upon receipt of products order
Raw materials inspection
First article and in-process inspection
Final inspection and testing with reports and certification

Selection of Measuring Equipment

We will evaluate a component to determine the best inspection method for each feature, and then add it to the part’s documentation. If we don’t have a tool that we need, it will be acquired. Some examples of our selection of inspection methods include:
• Concentricity and perpendicularity • Threads are measured with ground thread plugs or rings
• Internal diameters are measured with digital bore gages with .00001 resolution
• Feature locations（Concentricity and perpendicularity...) are measured on a CMM
• Outside features are measured with .0001” resolution micrometers
• Visual inspections are performed under 3x – 10x magnification
Winhoo is here to make the best parts possible and we know how important it is to have the right tools for the job.

Gage Maintenance Program

Inspection equipment and gaging are assigned unique serial numbers and controlled through a gage maintenance program. All gaging is calibrated and traceable to NIST standards. Annual gage calibrations are performed by an external, independent metrology lab.

Quality You Can Rely On

Winhoo Group are used in millions of devices and machines worldwide. Some components are used in very high tech applications like Military/Defense, Aerospace Agricultural, Transportation, Medical, Industrial, Automotive, UAV,and so on. As a professional precision machining manufacturer, we know nothing is more important than production quality. To ensure or even exceed the quality requirements of our customers, we have equipped with leading-edge inspection equipments and detailed quality control processes.

In Process Inspection

First piece inspections are performed on all parts. The first piece consists of 100% inspection of features created

at a specific operation, and is documented on the inspection report. Following the first piece inspection, the part receives in-process inspections to insure that the part remains conformant to print and that the process is stable throughout the operation.
Component inspection and metrology is an extremely important element to producing high quality products. Equally important is the Procedures and Systems that a manufacturer uses throughout the entire process.

Final part inspection equipment

Our Final inspection department is crucial for our ISO certified manufacturing, we can perform quality control in final parts inspection by our inspection equipment, and guarantee our parts production match all your design specifications.

Inspection Reports

Inspection Reports are created for each part. The report lists each feature, dimension, and tolerances that need to be inspected. For key or tight tolerance features, the inspection report has an SPC style plotting sheet that we use to record measurements with a high frequency of inspection. Reports are made available to the customer and included with the shipment.

Coordinate Measuring Machine

CMM can collect final parts points data, and then use these database to measure parts with complex shape. With its huge data in three dimension for parameter of various shape, we can inspect our final parts with acceptable accuracy and repeatability.Quality is always at the top of your mind, and by using a CMM, our customers can enjoy higher levels of superiority and precision.

Visual Quality Standards

We also implement Visual Quality Standard for surface finish service, inspect painted finishes and make consistency of cosmetic appearance, this standard also implement in plastic injection molding service. All our production will be inspected by a consistent method with same standard, so we can guarantee that any parts form winhoo will beyond your expectation.

XRF Analyzer

X-Ray Fluorescence analysis in a non-destructive testing way, it use calibrated spectrometer to analyze different wavelength reflect by each element, then present element types and relative concentrations. Metal, plastic and ceramic will be exposed to low level X-ray or gamma radiation in testing process.

Surfometer

Our surfometer can check final part surface roughness, we use this device to guarantee specific surface finishes as custom requirement. Its portable advantage make our checking process more convenient.

ISO Certified Manufacturer

Our ISO 9001:2015 quality system is not only a operation standard for us, but also our core business functions in every aspects.we also work hard to understand our Customers’ needs and treat every project as if it was our own!As your loyal supplier, we have strict manufacturing quality control in CNC machining, 3D printing and Die casting.Our goal is to achieve continuous reduction of process variation. This requires statistical data analysis, statistical process control and sound problem-solving efforts. By developing reliable, capable and pragmatic processes, Winhoo Group will improve quality, increase productivity, and lower costs.

ISO 9001:2015
CROMA CMM
Hardness testing
Optical measuring equipment
Microscopic Measurement
Surface Measurement
Contour and Roundness measuring equipment
3-D Virtual Machine Design and Program Software