Quality is defined at our facility as servicing the customer's needs with products that
meet or exceed requirements in a timely and cost effective manner. We have achieved
ISO-9002 certification through coordinated team efforts between all departments.
The philosophy of teamwork is deeply ingrained into our culture and facilitates
attainment of company goals.
In order to manufacture and deliver a quality product, the entire build process must be controlled. We strive to determine and monitor the capability of each process, in accordance with standard SPC practices. Areas for control include raw powder materials, powder preparation, key characteristics of finished powder, pressing, sintering and finishing (as required). Parts are inspected on a sample basis per established industry standards, such as MIL-STD-105E or C=0. Depending on the part configurations, various mechanical and electrical characteristics may be verified. State of the art electrical analyzers, bridges and precision mechanical hand tools are utilized by trained personnel to assure accurate data. Hewlett-Packard 4291A RF impedance/material analyzers provide inductance, impedance and capacitance data as required. Arithmetic functions built into the equipment allow for direct reading of values, after initial setup. Capacitance testing of coilforms is accomplished with GenRad 1687 and 1689 precision RLC bridges. Utilizing in-house software, the bridge output is monitored and statistically compiled in order to assess the material under test. Inductance testing and sorting utilizes HP 4284A precision LCR meters. This equipment, utilizing in-house programming and fixturing, allows for accurate sort/test of inductance values. HP 4342A Q-meters provide Q values for coilforms. Values are obtained by fine tuning the frequency required to "peak" the Q meter. Quad-Tech 1870 AC/DC dielectric analyzers help perform traditional hi-pot testing and DC current resistance testing. This determination of voltage required to breakdown the insulation resistance allows us to verify the integrity of applied Parylene or epoxy coatings. Additionally, Quad-Tech 1633A incremental inductance bridges assist testing of our DC bias material. In this application, the bridge measures Rs and Ls. Bridge frequency and alternating voltage are set and DC bias varied for the test conditions. The bridge will read the inductance, with or without a superimposed direct current. Proper calibration status is maintained on mechanical and electrical equipment, traceable to NIST standards. We continuously examine our facility for potential improvements. Vendor communications and customer support are an integral part of our business. It is through actions like these in an atmosphere of Total Quality Management that we plan to service our customers in the increasingly competitive global marketplace.
MMG Test Equipment
Powder Lab
Press Tool Crib
Production Departments
Final Inspection
Engineering Lab
MMG's Standard Quality Controls
First Article Inspection is performed when a job is released to the Press Department.
Samples from the first pressing are run through subsequent processes to evaluate
adequacy of the pressing and sintering effects. New batches and jobs go through a
Pilot evaluation.
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Company Profile
What is a Ferrite?
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MMG-North America 126 Pennsylvania Ave Paterson, NJ 07503 United States Tel: (973) 345-8900 Fax: (973) 345-1172 Mail us: sales@mmgna.com |
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