Quality and Reliability

These features are assured by innovative design, manufacturing and testing.

1. DESIGN:

* Computer aided design building on the vast experience of Marposs in industry;

* Appropriate materials and processes that comply with the latest safety and ecological regulations (non-toxicity, self-burning out);

* Elimination of susceptibility to EMC and output of EMC.

2. MANUFACTURE:

* Computer assembly of components on electronic circuit boards;

* Automated production lines for soldering.

3. TESTING:

* Automated circuit testing of circuit boards;

* Each board is subjected to a burn-in test at 60deg C for 100hours;

* Testing of final assembly to specification;

* Approval by public testing laboratories.

To know more:  E9 – Analog Amplifier for In-Process Applications on Grinders

Material integrity test to detect faults

Material properties test to check if the thermal cycles

HRC test made with conventional penetration method

Thread inspection to check if the threading was performed and its quality.

Follow the link to get the complete information: Non Destructive Testing

The Non-Destructive Test (NDT) allows finding out surface faults (such as cracks, porosity, etc.) without changing the physical state of the part.

To know more follow the link material integrity check

Leak testing, these days, is used as one of the methods for quality and process control.

Leak testing is used in the machining or assembling process of a product, to detect not only the presence of pores or cracks in a cast piece, but also the absence of machining, the incorrect assembly of a component, a defective gasket or the imperfect machining of two mating surfaces.

The global quality control requires technical solutions that can guarantee the best performances at a reasonable cost.

The integration of the ND testing system directly on the centerless grinder and the test performation during the grinding cycle achieve that result in an original and safe method.

In this condition it is possible to take advantage of the perfect mechanical stability of the parts, which are through fed by the two wheels.

Leak Tests

It is possible to make manual or semiautomatic bench gauges, automatic machines and whole lines for leak checks on:

Engine block
Cylinder head
Gear case
Differential case
Crank shaft and cam shaft
Oil, water and fuel pumps
Manifolds
Valves
Brake components
Gas components

to know more follow the link: Leak Tests

Special Testing Applications

In some situations, where test or measurement operations are complementary to assembly operations, special testing applications are designed and manufactured based on the customers’ need.

Here are some examples:

Automatic stations with roller-conveyor, with transfer on pallet or with gantry loader (for in-line applications)
Automatic stations with robot automation (for applications integrated in assembly lines)
Machines with rotary table (where quick loading/unloading is necessary for limited cycle time)
Machines with automatic sealing tools exchange (flexible for checking families of parts)
Machines with sealing tools carrier and automatic retooling (easy and quick to retool)
Manual stations for final inspection or back-up check for recycling recovered parts
Integrated applications (multi-stations) for assembly lines (assembly + leak test + dimensional check)
Gas tracing in vacuum chamber (with high performance for very little leaks)
Stations with gas tracing with “sniffing” method (to localize the leaks)

to know more follow the link: Special Testing Applications

Leak Tests & Functional Checks

The leak tests and the functional checks are implemented as methods for monitoring the production process and for the product quality control.

The leak tests are used to find out possible leaks due to non suitable material (porosity, blowholes, cracks), or in the machining process to find out machining errors or defective parts, and finally during the assembly to find out missing or defective gaskets, wrong positioning or assembly.

The functional checks simulate the operation for the characteristic of use, thus ultimately guarantee the integrity of the parts that underwent the test and the good functionality of the product.

to know more follow the link: Leak Tests & Functional Checks

Even more machines and tool about in-process gauge heads, touch probes and sensors for machine tools; e.g. grinders, lathes, milling machines and machining centers. Hand held gauges for various checks; in particular wireless gauges with local display, and data transfer to a fixed P.

To know more Measuring and Testing Equipment for Aerospace Industry

The development of the new generation electronic E70s represents a significant step forward for the solution of complex applications which require the use of a large number of sensors.

With the wide modularity offered by the system, it is possible to configure measuring solutions from a minimum of two channels to a maximum of twelve, further expandable by means of external multiplexers.

The system is able to store up to 256 setting parameters for each one of the 12 sensors. These can be directly connected to the E70s, thus allowing extensive tests for every kind of part that needs to be checked.

A wide range of hardware configurations can suit specific applications. The E70s is available with local or remote operator panels, providing various mounting solutions.

With the new E70s, and a mechanical structure properly designed,today it is possible to verify the surface integrity of parts having a wide surface to be checked, in automatic mode at 100% in the production line.

The new Marposs hardness measuring fork has been conceived for an easier and more friendly use on the shop floor environment. Its wide inspection range allows testing all the crankshaft’s families without any kind of mechanical tooling, thus completing the HRC inspection of all pins and journals within few minutes.

Follow the link to get more information about the: Conventional Rockwell Hardness Testing Equipment for Shaft Like Parts

The system is capable of verifying the surface hardness of Crankshafts and Camshafts, in Rockwell scale, quickly and very reliably. Tests can be performed on either finished ground surfaces or on turned and facetted surfaces, allowing for testing immediately after the heat treatment operation.

The hardness tests are performed according to ISO standards.
The uniqueness of this testing system makes it possible to neglect the test parts machined surface condition when the required testing load is applied to it. As a result the system can provide a higher level performance in terms of precision and reliability.

To know more log on to the: Conventional Hardness Rockwell Testing Equipment for Shafts

Problem Description

Camshafts for automobile engines are manufactured using a variety of methods.
They can cause a variety of quality defects, such as:
- porosity;
- hardness cracks;
- casting shrinkage, cavities and holes;
- missing material.

Subsequent grinding can also cause cracks or grinding burns (soft spots). They are caused by variations during grinding operations such as changes in grinding speed, changes in grinding wheel/workpiece position and by the effects of the coolant used.
In the past, attempts to automate test procedures have often failed.

Solution

Complex geometry’s such as camlobes can now be easily tested with standard Marposs N.D. probes.
The Marposs N.D. inspection method is based on the Eddy Current technology.
It is the only method capable of performing N.D. inspections automatically. For this reason, it can be easily installed into a production line for 100% inspection.
The traditional testing procedure, which is usually performed with magnetic powder and/or human evaluation, can be now reduced in terms of inspection time and overall cost.
Cracks as small as 100 microns in depth can be detected, dependent upon the surface finishing and material homogeneity.

Automatic N.D. Testing System

The parts are automatically loaded into the Marposs machine for simultaneous inspection of camlobes and journals.
The probes are equipped with diamond shoes and mounted on followers, which always keep them in touch with the lobe surface.

Minimum Cycle Time: 10 seconds.
Reject parts are automatically segregated.
Detectable Defect
The inspection equipments can detect the following defects:
- porosity;
- cracks;
- missing material;
- blow holes;
- nick and marks;
- grinding burns.

Application for the simultaneous inspection of 10 camlobes and 6 journals (16 probes total)
Automatic measuring trigger on the camlobe’s chamfer machine cycle time: 16 seconds

To know more follow the link: Automatic testing equipment for surface defects

This equipment is used along with the E9066N FLAT PANEL and/or the E70s electronic unit.

Are you looking for more information? Follow the link M125 ND and Dimensional Test of Cylinder Block

Leak testing is now generally used as one of the methods for quality and process control.

It is used in the machining or assembling process of a product, in order to detect not only the presence of pores or cracks in a cast piece, but also the absence of machining, the incorrect assembly of a component, a defective gasket or the imperfect machining of two mating surfaces.

In you are interested on knowing more, here it is the link: Leak Testing

In modern production systems it is indispensable to automate non-destructive checks, not only due to stricter quality standards, but above all because the failure of a mechanical component may affect the user’s safety.

Checking the surface defects of parts (such as cracks, porosity, etc.), the structure of the material and the hardness and depth of hardening, the eddy-current technology offers a testing speed that is higher than that of any other technology in the area of non-destructive checks.

Operating Principle

When a solenoid charged by alternating current (control sensor) is moved close to a conducting material (part to be checked), the alternating magnetic field creates a mutual-induction current on the part.
This induced current generates a secondary magnetic field that induces a current in the coil. The impedance of this coil may be affected by differences in the structure of the material, by the hardness of the material, the depth of the hardening or the presence of cracks or pores.

Follow the link to get more information about the: Eddy Current for ND Testing