WHAT WE OFFER
Verus Precision provides new product engineering services to indigenous and leading multinationals. Our core expertise of fixture design, metrology and moldflow, will ensure we become your trusted partner for all future product introductions.
Metrology
Fixtures
Moldflow
OUR PROCESS
Sub-Contract Measurement & Inspection Services
With our team of fully skilled Metrology Engineers, we offer the following services :-
DIMENSIONAL GAUGE CALIBRATION
Verus Precision provides an accredited, traceable calibration and verification service to a wide range of clients.
We specialise in the certification of non-standard bespoke gauges used for in process checking. The methods we use for testing these gauges, has been developed over several years of working closely with our Clients. We now have a standard procedure for the inspection and testing of all nonstandard bespoke gauges:
We also calibrate and certify a wide variation of standard gauges including;
CALIBRATION & CERTIFICATION
Verus Precision provides an accredited, traceable calibration and verification service to a wide range of clients.
We specialise in the certification of non-standard bespoke gauges. We also calibrate and certify a wide variation of gauges including go no-go, plug, pin and in-production checking gauges.
Verus supplies unique calibration certificates with all gauges and maintains a gauge management log for each client.
METROLOGY EQUIPMENT
We have at our disposal a wide range of both contact and non-contact measurement capabilities.
Our commitment to be at the forefront of metrology is reflected in our constant investment in new technologies, providing up to the minute solutions for our customer needs.
METROLOGY FIXTURE DESIGN/CMM & VISION FIXTURES
Through our metrology workshops at the very beginning of your new project, the Verus Precision design team will work with you and our metrology Engineers, to develop initial concepts and single station prototypes along with extensive and detailed project schedules. This process ensures a fast design and development cycle and an optimised final Inspection fixture solution.
Our Design team specialise in bespoke Metrology Inspection Fixtures for CMM and Vision systems and also Hybrid Inspection Fixtures for use on Vision System CMMs with touch trigger capability. The Metrology Fixture can range from single station to large repeat multi-station solutions.
Our Fixtures are designed to reduce operator interaction and to allow the maximum number of measurements to be taken with the minimum number of setups. In most cases we can develop a single fixture that will allow all dimensions to be taken on any component.
We develop the concept design into final high cavitation multi-station fixtures with full 2D technical drawing and 3D models for client approval and manufacture.
INSPECTION FIXTURE MANUFACTURE/CMM & VISION FIXTURES
As toolmakers we pride ourselves on the quality, precision, functionality and finish of the Metrology inspection Fixtures we supply.
To ensure the fastest turn around and maximum capacity we maintain a high quality audited and approved subcontractor list. We work closely with each of our local approved subcontractors to develop close working relationships and an innovative mutually respected process of continual improvement.
This process results in the highest quality of manufacture and metrology fixture solutions that are second to none in the market.
Utilizing a full spectrum of subcontractors we have capacity and capabilities to manufacture the largest multi-station Metrology fixtures to highly complex single station inspection solutions for large or small components.
METROLOGY FIXTURE QUALIFICATION
We strongly believe in delivering a Metrology Inspection fixture that will perform and function to the highest standards. To support this, we perform gauge R+R on all the Metrology Inspection fixtures we provide.
Once the gauge R+R has been completed, the results are loaded in to our statistical software package. Only once it has passed our strict criteria is the Metrology fixture released for delivery.
Along with the gauge R+R report, our fixtures can be shipped with a programme ready to be loaded to your CMM or Vision system metrology machine. Onsite support can also be provided for installation and Qualification.
Tests and validations of the programme can be completed and sent to you before shipping to ensure no delay in the Inspection fixture deployment.
We also Recommend Metrology Inspection Fixtures are returned for requalification on an annual basis depending on levels of use. The metrology fixtures will be inspected checked for wear and tear and a new gauge R+R carried out to re-qualify.
MOLDFLOW ANALYSIS (Fill, Pack and Warp)
Flow analysis includes the filling and packing stages of the injection moulding process.
These stages produce some of the most important results for evaluating a product design for injection moulding manufacturing.
Warpage results can be used to identify areas of excessive warpage and shrinkage, referencing product drawings and tolerances, it is possible to take point to point measurements from the analysis results to ensure the critical dimensions will be within tolerance after moulding.
Fill time: velocity profiles and shot size (machine specific)
Freeze time: time to freeze the runner, gate and part
Pack time & pressure: packing phase profiles (machine specific)
Venting requirements
Weld line locations
Volumetric shrinkage: shrinkage values for various part geometries
Shear rate: shear rates generated during filling and packing
Pressure at V/P change over
Injection pressure: pressure rates experienced during filling and packing
Reports and results can be tailored to specific requests for part troubleshooting.
MOLDFLOW ANALYSIS (Cooling)
Cooling analysis is used to evaluate and optimise cooling lane design. Working in partnership with the mould tool designer, multiple cooling designs can be analysed. This is critical to the overall process as cooling design will have an effect on part filling, freeze times, warpage and the overall cycle time.
Variation in coolant temperature
Flow rate in each cooling circuit
Reynolds number in each cooling circuit
Pressure drop along each cooling circuit
Surface temperature distribution: top and bottom sides of inserts and parting planes
Distribution of average plastic temperature at ejection time
Distribution of maximum plastic temperature at ejection time
Cavity surface temperature distribution
Insert temperatures
Reports and results can be tailored to specific requests for part troubleshooting.
MOLDFLOW ANALYSIS (Core Deflection & Twin Shot Moulding)
Core shift is a frequent problem with long, slender, and not necessarily thin-walled products, such as vials, test tubes, pen barrels. It is often experienced in moulds for thin-walled containers.
Core shift can result in undesirable variations in wall thickness which will affect the final shape and mechanical performance of the part. The core shift simulation provides detailed information about the movement of the mould core and its interaction with the polymer flow process as the plastic is being injected.
The overmoulding analysis consists of a 2-step process where a normal Fill+Pack analysis is performed on the first cavity (first component stage), which is then followed by a Fill+Pack analysis on the overmoulding cavity (overmoulding stage). The consecutive overmoulding stage on the second cavity uses a different material from the first analysis, and the first component temperatures are used as the initial temperatures.
Core deflection
Final core shift
Stress in the core
Re-melt zones
Pre-mould temperature during over moulding
Insert over moulding
Warpage of the overmoulded assembly
Reports and results can be tailored to specific requests for part troubleshooting.