In technical drawings, geometric and dimensional tolerances
indicate the acceptable limits of mechanical variations in components.
These variations are unavoidable due to the inherent imperfection of all manufacturing and assembly
processes; they also tend to propagate within a product, often presenting amplification effects.
To avoid negative impacts on product requirements and functionality, variations should be managed
using Dimensional Management: this method is an essential part of the product
development process and is imperative for all companies wanting to maximize their profit margins
and competitiveness.
Optimal tolerance management is achieved through careful preliminary analysis and effective quality control strategies based on a rigorous approach to engineering, and effective collaboration between design, industrialization, production, supply chain, and quality control.
The objective is to BE PRECISE ONLY WHERE NECESSARY. This means that while the use of wide tolerances will make production processes more cost-effective, this is often at the expense of product performance/functionality; on the other hand, strict tolerances will guarantee high quality but negatively impact production costs. Finding a compromise is essential.
This requires:
Moreover, this method and the various supporting tools are well-suited to use with the digitalization of all relevant product development information. By using new generic CAD interchange formats (STEP AP242 and/or QIF – Quality Information Framework), specifically introduced to support the radical digital transformation of manufacturing companies towards MBD (Model Based Definition), the various information steps between design, production, and quality control can be automated. This allows the full potential of new-generation industry 4.0 equipment to be fully leveraged, reducing human error in data transcription, and freeing time and resources to innovate products/processes rather than performing low-value tasks.
With our experience across a wide range of industries, from automotive and mechanical engineering, to aerospace, medical and more, we support you in optimizing your products using simulation.
We place our expertise and many years of experience in tolerance management at your disposal, whether it be for a single project or to implement a method for your entire production process.
EnginSoft’s portfolio includes several software technologies for tolerance management that we recommend after careful analysis of each customer’s needs. We also provide dedicated technical support for each technology.
We offer a wide range of training courses – catalogue, on-demand and customized – designed to meet the varying needs of individuals and/or the company in which they work.
Send your technical questions to our experts!
Connect you with an EnginSoft expert who can provide a reliable answer to your technical question or recommend a proven solution.
Training is key to effectively using and applying tolerance management in your company.
Our experienced instructors can provide courses in person at your premises, in our training centre, or online in a virtual classroom.
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ISO-GPS is a standardized technical language that enables the robust practical application of Dimensional Management through functional description of the dimensional/geometric requirements and unambiguous specifications. Its prescriptions are used to describe the dimensional and geometric variations that can be accepted in the production of a single component, it clearly indicates what you need to measure and allows to explicitly control all the aspects of such variations.
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Tolerances propagate, often experiencing amplifications, among the individual parts of a product trough contacts, leading to potential negative effect on the assemblability and product performance/quality.
cetol tolerances training
training courses
The training course on geometric product specification and tolerance analysis addresses the issues related to tolerance management and the approach known as "Dimensional Management", which defines the activities involved and their sequence for achieving the desired quality at the lowest possible cost. We offer a wide range of training courses – scheduled, on-demand and customized – designed to meet the varying needs of individuals and/or the company in which they work: SO-GPS, ASME-GD&T standards, Tolerance analysis and model-based definition, and Software technologies training.
cetol tolerances
Discover the features of tolerance management software.
software
The fully integrated 3D tolerance analysis software tool provides the invaluable insight needed to confidently release designs for manufacture and inform the selection of appropriate tolerances to achieve your variation goals efficiently.
cetol eztol gdtadvisor tollerances
software
EZtol is a 1-Dimensional tolerance stackup analysis program designed to assist in understanding the impact of the accumulation of part-level dimensional variation and sources and the impact that they have on assembly-level requirements.
eztol cetol gdtadvisor
software
GD&T Advisor the interactive software solution to guide the designer or engineer towards the correct application of GD&T, based on CETOL 6σ Precise Constraint Technology
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software
CompareVidia is an easy-to-use application for validating and comparing CAD models. A simple workflow enables you to load two CAD models and compare them based on your criteria.
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Some case studies on tolerance management.
CASE STUDY
This article describes how EnginSoft supported Metasystem in acquiring the know-how to satisfy future customer requests on the one hand, and to create projects that are as profitable as possible in terms of waste minimization, on the other hand.
automotive tolerances cetol
CASE STUDY
Special Springs commissioned EnginSoft’s engineers to calculate the production cost repercussions of a technical product modification requested by an important customer.
eztol mechanics cetol tolerances
CASE STUDY
In this technical case study, we illustrate how EnginSoft engineers helped ABB to optimize the design of the Emax2 project.
tolerances cetol electronics mechanics eztol
CASE STUDY
In a recent interview, Enrico Boesso (EnginSoft) and Daniel Campbell (Capvidia) discussed how Model-Based Definition (MBD) is transforming manufacturing by replacing traditional 2D drawings with data-rich 3D models as the "single source of truth".
comparevidia mbdvidia tolerances digital-manufacturing mechanics
CASE STUDY
This article examines the simulation of an RCD to determine the factors that affect its response times.
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CASE STUDY
This case study describes ISEO’s project to introduce a global dimensional management approach based on CETOL6σ that starts from the product concept phase and includes design development and prototyping and extends on to cover all other phases of production through to the finished product, with the guidance and support of EnginSoft.
tolerances cetol mechanics
Find out how and why to implement Model-based definition (MBD).
Visit the dedicated section