SUCCESSFUL IMPLEMENTATION OF QCSPC SOFTWARE FOR PRECISION MACHINING COMPANIES

In precision machining sectors—such as turning, milling, grinding, wire-cut EDM, and stamping—tolerances are often as tight as ±0.01mm. A single defective batch can result in the loss of an entire contract with an FDI client. This is why leading precision machining companies today mandate the use of SPC (Statistical Process Control).

 

We are proud to have successfully implemented QCSPC software for numerous precision machining companies across Bac Ninh, Hai Duong, Hai Phong, Binh Duong, and Ho Chi Minh City.

 

1. What is QCSPC, and why do precision machining companies need it?

QCSPC is statistical process control software that enables:

 

Direct collection of measurement data from calipers, micrometers, and 3D measuring machines

Automatic, real-time generation of Xbar-R, Xbar-S, and Histogram charts, as well as Cp and Cpk indices

Immediate alerts regarding process deviations before defective parts are produced

Full traceability of batches, including the specific machine, shift, and operator involved

For precision machining companies, QCSPC is not merely an option—it is a mandatory requirement for entering the supply chain. 2. Challenges faced by the customer prior to using QCSPC

Before implementation, most turning, milling, and grinding workshops relied on Excel for management:

 

Manual recording led to errors and delays

Failure to detect early trends such as tool offset or grinding wheel wear

Compiling Cpk reports for customer audits took 2–3 days

Inability to connect data directly from measuring instruments

3. The QCSPC solution we provided

We delivered a comprehensive package:

 

a. QCSPC Software

Vietnamese interface, simple operation for QC staff, and support for standard-compliant charts.

 

b. Measuring Device Connectivity

Direct connection to Mitutoyo and Mahr instruments, as well as 2D and 3D measuring machines via USB/RS232 ports, eliminating manual data entry.

 

c. Training and Handover

Training for QC staff, team leaders, and management on interpreting charts and responding to Out-of-Control (OOC) alerts.

Post-implementation results:

40–60% reduction in defect (NG) rates

Cpk report generation time reduced from 2 days to 5 minutes

Passed customer audits (Japanese and US clients) on the first attempt

 

4. Commitments regarding QCSPC implementation

Drawing on our experience implementing solutions for precision metal machining companies, we commit to:

Conducting a free assessment of turning, milling, grinding, and laser cutting processes prior to quoting

Installing and configuring charts tailored to the customer's specific part codes

Providing warranty coverage and 24/7 remote support throughout the usage period