We have 2 full-time SQE engineers, adopt a complete supplier process control process, and combine with 30 appearance inspection personnel to achieve a parts yield rate of 98%.
We have our factory and many outsourced suppliers that we have cooperated with for 11 years. It has a complete outsourcing supply chain and review standards.
Material quality is crucial. Each batch of arriving materials will undergo strict testing and an SGS material report will be issued to ensure that customers are using truly high-quality raw materials.
Our professional project engineering team with 15 years of experience is committed to review and analysis optimization to reduce CNC machining time and reduce costs. Provide competitive prices with the same quality.
We will implement stricter standards than ISO-2768-m and ISO-2768-c tolerances, as well as standard tolerances for CNC machining parts of our machines, with precision up to 0.005mm.
Every step will be inspected by the QC department during production, for each size & appearance,will issue an inspection report at the same time. We use an advanced quality control system using a combination of manual and automatic equipment. First article, inspection, and shipment reports are retained and archived for two years. From CNC machining to shipment, we have dedicated personnel to follow up and share in real-time and transparently. Get support while using the product. We have a measurement laboratory equipped with high-precision inspection instruments such as 3D Projector and 2D Projector.
Manufacturability DFM Analysis
Before production manufacturing begins, our engineering team evaluates your part design with DFM analysis technology. Identify possible manufacturing difficulties and limitations, process structure optimization, materials, surface finish, and other details of 3D and 2D engineering drawings and propose corresponding solutions.
Raw Material Verification
Raw Material Verification
Upon customer request, we provide reports on the materials used to manufacture your parts. Indicate in detail the material calorific value, material grade, material size, mechanical properties, chemical analysis, etc.
Take the raw material testing method of the following product as an example. Different products have different raw material testing requirements:
1. Receive raw materials. After receiving raw materials, conduct a sampling inspection to visually check for any issues with the appearance, quantity, and specifications of the materials. There is no damage to the surface and the packaging is intact. Quantities and specifications are subject to the delivery note of the purchase order. Say no if there is a problem.
2. Incoming inspection. Sampling inspection visually inspects the appearance of the material, the performance of the material components, and the size of the material. The samples are then oxidized to meet the customer’s appearance requirements after oxidation. Use calipers to check whether the size of the incoming material meets the drawing requirements. Issue an incoming material inspection report.
3. Raw material storage. Before warehousing, visually inspect the appearance and packaging of raw materials, and check whether there are any problems with material markings. If there are no problems, it can be put into storage.
Operator Self-Check
After the CNC program is completed, the operator will perform a self-check on the machine to ensure that it is correct before proceeding to the next program or disembarking the machine to control the quality of each process.
On-Site Inspection
On-Site Inspection
In precision CNC machining, inspection personnel conduct random inspections of semi-finished products being processed every two hours to once again ensure the product’s qualification rate. If any non-conformity issues are found, they should be noted promptly and the relevant responsible persons should be notified to deal with them. According to different problems, corresponding measures are taken, including shutdown and rectification, rework, equipment adjustment, etc.
Process Quality Control
Process Quality Control
IQC, IPQC, FQC. First inspection, inspection, and shipping reports are retained and archived for two years. We strictly comply with ISO9001:2015 requirements and make adjustments according to customer quality requirements.
External Detection
External Detection
Some CNC machined parts have very high requirements on appearance. We will conduct an appearance inspection to detect whether there are problems such as yin and yang, color difference, burrs, unevenness, etc. after the appearance is oxidized, and record and analyze it. If it is a structural part, the inspection is different.
Full-Size Inspection Report
For all parts ordered, we can provide full-size inspection reports upon request. The report will include the following: part quantity, critical dimensions, threads and tolerances, thickness and depth, part appearance, etc. Inspection results for each part are recorded and classified for scrap or rework. Everything is based on customer drawings and size requirements.
Package
Package
Parts of different shapes, sizes, weights, and materials require different packaging methods to ensure that the parts are not damaged during transportation and are delivered to customers with zero defects. Commonly used packaging methods include wrapping in pearl cotton or white paper, placing in bubble bags, PE bags, blister boxes, blister trays, etc. We can also customize packaging on demand.
Ship
Ship
Ship: Establish long-term cooperative relationships with UPS, DHL, EMS, TNT, FEDEX, and Federal Logistics, which can provide the best price according to your needs. We can also arrange bulk air or sea shipment according to your requirements.
When choosing a transportation method, you should consider factors such as the weight, size, quantity, and transportation distance of the parts, and choose the most economical, safe, and fastest method for transportation. At the same time, parts need to be inspected and packaged before shipment to ensure their quality and integrity.
As an experienced manufacturer of on-demand CNC machined parts, these certifications are the best recognition of the quality of our CNC parts.
After each process is completed, we must confirm whether the product or part meets the customer’s design and usage requirements. Check whether the surface quality of the parts is smooth, whether there are scratches, burrs, dents, dimensional accuracy, shape accuracy, position accuracy, surface roughness, logos and marks, and color.
We use vernier calipers, micro calipers, and height gauges to check CNC machined part dimensions. Dimensional inspection is a critical step in ensuring part quality and accuracy. For parts with complex and high precision requirements, we also use coordinate measuring machines to accurately measure their dimensions.
For parts with threads or threaded holes, we will use pass and stop gauges to detect the threads and the size, shape and surface roughness of the threads to ensure that the thread assembly of CNC machined parts meets customer requirements.
If you have requirements for the surface wear resistance of parts, we can conduct film thickness testing according to your requirements and issue a test report to improve the quality, performance and life of the parts.
Air tightness test for coupling parts before shipping.
If you have requirements on the corrosion resistance of the surface of parts, we can conduct accelerated corrosion tests on materials or parts by simulating ocean or other salt spray environments according to your requirements.
After completing CNC machining, we will provide the final inspection report to the customer. All reports are archived and kept for two years, such as first article inspection, process inspection, and shipping inspection. From raw materials, and CNC processing to shipment, we have dedicated personnel to follow up and share progress in real time.
Before processing, we can provide ROHS reports according to customer requirements to verify the quality, performance, composition, and structure of the materials to ensure that customers are using real raw materials.
VMT is committed to providing excellent prototypes and CNC-machined parts to meet your specific requirements. If your order does not meet your processing requirements, we can rework or refund you. If you encounter any quality problems within 1 month of receiving the goods, please feel free to contact our CNC machining experts. If you have any questions after receiving the goods, please contact us immediately and we will reply to you and give you a solution as soon as possible after receiving the email.
If you encounter problems during CNC machining, please confirm first, if not, we will re-examine the design and samples and hold a meeting to discuss solutions. If there is a problem after receiving the goods, we will immediately arrange a video conference after receiving the email feedback, communicate with our experts, solve it in the simplest and fastest way, and resend new samples.
After receiving email feedback, we will conduct video or phone communication as soon as possible to confirm that the product problem is caused by us and cannot be repaired, and quickly process refunds and returns.
