Additive Manufacturing Path Planning for Multi-Tool Process Sequencing

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional additive manufacturing systems require manual operator intervention to determine the path and processes for manufacturing parts, which can be inefficient and prone to errors due to the need to select appropriate additive manufacturing processes and parameters for various features of a part.

Innovation Solution

A system and method that utilize a processing circuit and machine-readable instructions to receive a three-dimensional model of a part, determine a sequence of additive manufacturing processes based on the model, available tools, and motion capabilities, and control the tools to manufacture the part automatically, incorporating sensor data and various welding-type processes such as arc welding and laser welding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual operator intervention is used to determine manufacturing paths and processes, then flexibility in handling complex part features is maintained, but efficiency and accuracy deteriorate due to time-consuming manual planning and potential human errors

Engineering Contradiction:
Improvemanufacturing efficiencyVSAvoidautomation system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The additive manufacturing system performs automated path planning and process selection for itself by analyzing the three-dimensional model of the part and automatically determining the manufacturing sequence, eliminating the need for manual operator intervention and significantly improving manufacturing efficiency

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical planning operations with an automated computational system that uses algorithms to analyze part geometry and generate manufacturing paths, substituting human cognitive processes with automated software-based solutions

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

2Manufacturing precision

If automated path planning is implemented, then manufacturing efficiency and precision are improved, but the complexity of the control system increases

Engineering Contradiction:
Improvepath planning accuracyVSAvoidcontrol system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The system incorporates feedback mechanisms where the automated path planning algorithm continuously analyzes the three-dimensional model, evaluates manufacturing capabilities, and adjusts the manufacturing sequence based on real-time system status and sensor data, ensuring high precision while managing control complexity through iterative optimization

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs preliminary analysis of the part's three-dimensional model before manufacturing begins, automatically determining all path planning parameters and process sequences in advance, which ensures manufacturing precision while reducing the complexity of real-time control decisions

Inventive Principle:
Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach enables efficient and precise planning and execution of additive manufacturing processes, reducing human error and optimizing the use of resources by determining the best sequence of processes and tools for each feature of the part, thereby improving manufacturing efficiency and quality.

Implementation Method 1

Additive manufacturing is a process that deposits material in a layered fashion to build up a part into a particular geometry

Methodology Applied
Scientific EffectMaterial deposition: Deposition (physical)

Implementation Method 2

incorporating sensor data and various welding-type processes such as arc welding and laser welding

Methodology Applied
Scientific EffectArc welding: Electric Arc

Implementation Method 3

incorporating sensor data and various welding-type processes such as arc welding and laser welding

Methodology Applied
Scientific EffectLaser welding: Laser Beam Welding

Data Source

PatentEP3699706B1Path planning systems and methods for additive manufacturing
Publication Date: 2024.06.05 ILLINOIS TOOL WORKS INC
  • EP3699706B1 patent drawingFigure 1
  • EP3699706B1 patent drawingFigure 2
  • EP3699706B1 patent drawingFigure 3

AI summary

Disclosed are systems and methods to plan a path to form a part using an additive manufacturing system. The additive manufacturing system may include one or more additive manufacturing tools. The additive manufacturing tools may include arc welding tools and non-arc welding tools. The system may also manufacture the part based on the planned path.