Virtual Drift Simulation for Metal Tube Quality Verification

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Solution Overview

Problem

Current drift tests for metal pipes are costly, time-consuming, and disrupt the production flow, providing late feedback that can lead to increased downtime and rework, with physical tests often getting stuck and causing costly system failures.

Innovation Solution

A virtual drifting method using pre-determined measurement data for the pipe's geometry, where a virtual cylindrical drift body is simulated through a three-dimensional image of the pipe to assess driftability, reducing testing costs and providing quick results.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If physical drift tests are performed on metal pipes, then driftability verification is achieved, but testing costs and time consumption increase significantly

Engineering Contradiction:
Improvedriftability verificationVSAvoidtesting time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent creates a virtual copy of the physical pipe and drift body, using measurement data to generate a digital twin representation. This virtual model allows drift testing to be performed in simulation rather than physically, dramatically reducing testing time while maintaining verification accuracy through mathematical modeling of the interaction between drift body and pipe geometry.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent replaces the mechanical physical drift test system with a computational simulation system. Instead of physically pushing a drift body through a pipe and measuring resistance forces, the invention uses mathematical models to calculate driftability based on geometric parameters, eliminating the need for physical testing equipment and reducing testing time to minutes or seconds.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If physical drift tests are performed on metal pipes, then driftability verification is achieved, but production flow is disrupted and feedback is delayed

Engineering Contradiction:
Improvedriftability verificationVSAvoidproduction flow
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent performs driftability verification as an integrated step within the production process itself, using measurement data collected during manufacturing. By calculating virtual drift results immediately after dimensional measurements are taken, the system provides real-time feedback that allows production parameters to be adjusted before the pipe leaves the production line, eliminating post-production testing delays and maintaining continuous production flow.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If physical drift tests are performed on metal pipes, then driftability verification is achieved, but system downtime increases due to stuck drift bodies

Engineering Contradiction:
Improvedriftability verificationVSAvoidsystem downtime
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent uses a virtual copy of the drift body in simulation, eliminating the physical drift body that could become stuck. The virtual drift body is a digital model used in mathematical calculations, so it cannot physically obstruct the pipe or cause system downtime. This approach maintains driftability verification reliability while completely eliminating the risk of physical drift bodies getting stuck and halting production.

Inventive Principle:
Principle #26Copying

Data Source

PatentEP2364431B1Method for testing the driftability of metal tubes
Publication Date: 2012.10.03 V&M DEUT GMBH

AI summary

The invention relates to a method for testing the driftability of metal tubes, wherein a cylindrical drift body having a defined diameter, defined length, and defined force is fed through the tube for ensuring a prescribed internal diameter and a minimum straightness. In place of the physical drift operation, a virtual drift is thereby performed.