Standardization for Process Engineering and Production

DIESAR Direction Internationale de l’Evaluation, de la Sécurité et des Affaires RéglementairesAFNeT Standardization Days 2018

Standardization for Process Engineering and Production Planningin Additive Manufacturing

by Benoît Eynard – Université de Technologie de Compiègne

benoit.eynard@utc.fr

May 17 & 18, 2018 (Paris) – team@afnet.fr - http://standardizationday.afnet.fr/ - ‹1›

Overview

1. Introduction

2. Process Standards2.1 STEP and STEP-NC2.2 MANDATE2.3 ISO/CD 18828

3. Production Planning3.1 AM Machining System Resource3.2 Purposes for Operations Management3.2 Machine Elements & Tool

4. Conclusions and future work

Overview

1. Introduction

Introduction

Standard terminologies of additive manufacturing:

§ Material Extrusion

§ Material Jetting

§ Binder Jetting

§ Sheet Lamination

§ Vat Photopolymerisation

§ Powder Bed Fusion

§ Directed Energy Deposition

Additive manufacturing (AM) ---process of joining materials to make objects from 3D model data, usually layer upon layer, as opposed to subtractive manufacturing methodologies.

Introduction

Additive Manufacturing (AM) v.s. Traditional Manufacturing:

n Material’s Processing

n Integrated Digital Thread and Related Data Model

Introduction

The objectives of standardising Process Engineering and Production

Planning:

1. AM still remain poor on standardized information for process

specification and planning

2. Robust digital process enables the higher integration and efficiency of

AM processes

3. Standards allows efficient data exchange for process planning and

operations management and enhance the interoperability in

manufacturing systems

Overview

1. Introduction

Review of existing standards

ISO standards Acronym Objectives Usage

10303 STEP To provide manufacturing information and sharing data

Manufacturinginformation

14649 STEP-NC To develop standardized data models for numerical control part programs

Process implementation

15531 MANDATE To create normalized data models for improving manufacturing management and information exchange

Manufacturing management and control

18828 No To standardize procedure for production systems engineering

Information flows for planning processes

Standards for process engineering planning and production planning in manufacturing system:

STEP – ISO 10303

PDMPart identification, Physical partCharacteristics, Document ManagementGeneral managment informationActivity and Work managementEffectivity Specification, Breakdown and configuration

Process Plans

Requirements

Design Rules

Mating definition

Presentaion

3D shape Data Quality

2D draughting

3D Machining Form Features

3D PMI(Product &

Manufacturing Information)

3D assembly constraints

3D kinematics

3D exact explicit

geometry

3D tessellated

explicit geometry

3D parametric & constr. history

3D Composite Design

STEP AP242 standard (Manufacturing Information):

n Include much of information in product design information and

manufacturing information

STEP-NC – ISO 14649

STEP-NC standard (Process implementation):

n Provides a comprehensive model of the manufacturing process;

n Apply multi-directional data exchange between all other information

technology systems

MANDATE – ISO 15531

MANDATE (Manufacturing management and control):

n Provide a neutral file to describe industrial manufacturing

management data and share databases and archiving;

n Facilitate the integration between numerous industrial applications

ISO/CD 18828

(Information flow):

n preliminary information

for operation list.

n prerequisites for

process planning

Overview

1. Introduction

Purpose for Process Engineering and Production Planning

nSupport the implementation of integrated platform

for CAD, CAPP and CAM

nImprove the advance of CIM, i.e. raw material,

available machine tools and operation sequences

nStructure the overall machine tool, mechanical units

and their relationship

nDevelop the interoperability between product

design, process engineering and production planning

AM – Machining Systems Resources

nBe classified into machine Tool, deposition tools, material

handling devices and controllers;

nprovide the required information regarding AM machine

tools and auxiliary devices.

Overview

n Targeted approach for standardizing the information model for AM (dedicated application to Fused Deposition Modelling technology):§ Process Engineering§ Production Planning

Process Plan for FDM Manufacturing Process for FDM Concepts

Model Representation

Application Activity Model (AAM)

Application Interpreted Model (AIM)

Application Reference Model (ARM)

Standards

Model Evaluationconformance Interoperability

ISO 10303/ISO 14649/ISO 15531/ISO 18828

Design information

Manufacturing Data

Machine Elements and Tools

Data model to structure the machine specific data according to existing EXPRESS schema and models and defined as a complementary part to represent various machine elements & tools in a standardised approach.

Machine Elements and Tools

Machine tool model is a conceptual representation for machine tool and provides a logical framework for representing its functionality in manufacturing systems

Implementation for STEP4AM

manfuacturing layer

Geometry model

Provides slice orientation

Shape aspect for layer information

Deposition operations

manufacturing_layer(#100)

elements

layer_operation(#300)

geometry_slice(#101)

slice_orientation(#102)

geometric_model(#60)

shape_aspect(#40)

Geometry slice

orientation Slice S[1:?]

provided_layer S[1:?]

operations S[1:?]

Definition of header path

Approach to the safe surface

Lift up to next print layer

Connect to print layer

Print trajectory

header_path(#200)

header_approach(#201)

header_lift(#202)

trajectory(#204)

header_print_connect(#203)

print_layer(#151)

safe_planar(#150)

print_line(#180)

approach lift

print_point

Lift_to_next_layer

connect_layerprepare_printprint_path

trajectory

quick_position

Implementation STEP4AM

Overview

1. Introduction

Conclusions and future work

Conclusions:

§ Focus on planning process and operation managements in the

context of additive manufacturing;

§ present three important ISO standards. i.e. ISO10303 (STEP),

ISO 15531 (MANDATE) and ISO/CD 18828;

§ Solve process implementations, manufacturing management and

control and information flows for planning process.

Conclusions and future work

n Provide machine specific data in the form of an EXPRESS schema

and various machine tools in standardised models

n Exhibit machine tool functionality, process engineering and

production planning

Prospects for future work:

n Integrate and standardize the hybrid manufacturing systems in

future work

Thanks for your attention

Standardization for Process Engineering and Production

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