QUALITY CONTROL

We specialize in CNC machining, investment casting, die casting, gravity casting, forging and stamping.

QUALITY ASSURANCE
Leadership, Innovation, And Continuous Improvement

Lucky stone is committed to customer satisfaction through performance excellence. To achieve our vision, we must continuously improve the quality of all products and services that we provide to our customers.
We are committed to doing so by using our most important resource (our employees at every level) to understand and continuously improve our processes. The management team is focused on providing the company with the best tools possible to succeed.


QUALITY ASSURANCE
LuckStone's Quality Management System is ISO 9001:2008 Certified.

Raw Material Checking:
Qualified raw material is key point to Qualified products.
All incoming raw material, will be tested the chemical composition and compared with material sheet from raw material suppliers.
Before casting, we check chemical composition again.
After casting, we check chemical composition for the 3rd time and arrange mechanical test. All testing results & testing rods will be kept for more than 3 years, for trace back in due course.
Additionally, we separate different raw materials in different blocks with obvious markings.


Advanced Quality/Production Planning
> A Part Control Plan is generated for each part manufactured identifying all key product characteristics and defining the methods for their control.
> A Process Flowchart is generated and defines the manufacturing process as well as the interaction and controls throughout the product realization.
> Process Failure Mode & Effects Analysis is performed to assure the prevention of defectives through the manufacturing process.
> A Full Metrology Review of the key parameters is performed and methods established to assure design intent is met.
> A Full Dimensional Layout is performed to verify mold design and part print compliance in the pre-production phase.


Process Quality Control and Final Quality Control:
Process quality control, especially first sample checking, is very important.
LuckyStone QC check the 1st samples for every shift, and responsible QC/workers are requested to check randomly per 30 mins.
Our QC will issue all dimension checking reports for random samples from every batch, and arrange 100% checking for important dimensions & 100% checking by gauges for functional dimensions, while some parts will be inspected by CMM.

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