Precision Machining — CPK Analysis & Tool Life Prediction

Keep critical dimensions in statistical control. Know when your tools will wear out before they do.

Industry Pain Points

Dimensional tolerance drift goes undetected between scheduled QC inspections
Manual CPK calculations in spreadsheets are error-prone and outdated by the time they reach the production manager
Tool wear is managed by fixed replacement schedules — tools are replaced too early (waste) or too late (defects)
Customer audits demand process capability evidence that takes days to compile from scattered measurement records

Our Solution

📏

Automated CPK Calculation

Real-time CPK and PPK calculation from CMM, micrometer, or gauge data. Track process capability trends continuously — not just at shift changes.

📊

Xbar-R Control Charts

Subgroup-based control charts for key dimensions with Western Electric 8-rule detection. Spot process shifts immediately.

🔧

Tool Wear Prediction

Monitor dimensional trends across tool life cycles. Receive predictive alerts when tool wear patterns indicate approaching tolerance limits — optimize tool change intervals based on actual data.

📡

Gauge & CMM Integration

Direct data capture from digital calipers, micrometers, CMMs via RS232/USB/Bluetooth. Eliminate manual data entry entirely.

🔔

Multi-level Alerting

Warning and action limits with tiered notification — operator alert, shift supervisor, and quality manager escalation based on severity.

📋

Process Capability Dashboards

Executive-level dashboards showing CPK across all machine centers. Identify your best and worst-performing processes at a glance.

FAQ

What types of measurement devices can you connect to?

We support digital calipers, micrometers, height gauges, CMMs, laser micrometers, and vision measurement systems from Mitutoyo, Keyence, Hexagon, Zeiss, and others via RS232, USB HID, or direct file import.

How does tool wear prediction work?

Our system tracks dimensional trends against part count since tool change. By applying linear regression and trend analysis to the measurement data, it predicts when a dimension will approach its tolerance limit — alerting operators to schedule a tool change before non-conforming parts are produced.

Can I set different CPK targets for different parts?

Absolutely. Each part number can have its own CPK/PPK target (e.g., 1.33, 1.67, or customer-specific requirements) and control limits. The dashboard provides a unified view across your entire product portfolio.

Get a Custom Precision Machining Solution

Our engineers will assess your machining setup and measurement workflow to design a CPK monitoring strategy that fits your operation.

From ¥399/month · Free 14-day Trial · No Credit Card Required