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FREQUENTLY ASKED QUESTIONS

MATERIAL PROCUREMENT

a

What standards do you practice when receiving material?

We check the invoice quantity and material specification against actual arrival. We also conduct dimensional checking (sampling inspection) to ensure that the raw materials conform the standard specification.

a

What are the materials you procure to be used in the production?

a.) Ingots (Aluminum & Zinc)
b) Brass (Bar/Pipe/Ring/Plate/Forged)
c) Aluminum (Bar/Pipe/Ring) Hexagonal/Square/Plate)
d) Stainless
e) Copper
f) POM
g) Steel
h) Forged (Sandcast / Aluminum)

a

What is your shortest lead time to procure the materials?

Through air Shipment – 7 days

DIE-CASTING PROCESS

a

What are the dimensions of the smallest item you can die-cast?

In MMTI current Casting item, the smallest was from one of our camera accessories
customer having 11.6mm x 3.0mm size at ZDC2 casting operation.

a

How do you usually deal when the die mold design provided is identified ineffective upon evaluation?

We use different software – SOLIDWORKS2020, NX12.0 and MAGMASOFT – to simulate and solve the problem. We review the design checklist and procedures that can help minimize or prevent the re-occurrence of the problems. Lastly, we design the repairs needed then proceed to repairing die mold.

a

If the die mold is already provided, how do you maintain the condition of the mold?

Once casting trial is conducted and material specification requirements are met during evaluation then die mold will be transferred to the DMM (Die Mold Maintenance) Group and will be in-charge of maintaining the die mold.

a

How do you manage the scraps and NG items in the die-casting department

Scraps and NG items are managed through recycling it. They are charged to melting chamber at Furnace machine for a 30% level and been mixed to a 70% raw or virgin material. Right after charging and once melted, cleaning is conducted on molten metal through fluxing activity using a flux chemical. The purpose of that activity is to remove impurities present on the molten metal which might cause NG on product if not remove.

PRODUCTION PROCESS

a

What is your tolerance precision?

Tolerance is until ±0.05µ

a

How many days will it take to finish the trial stage of the item?

Without plating requirements it takes 10 days if material is ready With plating requirements it takes 15 days if material is ready. It usually depends on the design of the item, requirement from the customer.

a

How many pieces can you cater per item?

The contract or PO quantity per item is negotiated during price quotation request and PO receiving/confirmation. We offer flexible arrangements with our customers.

a

Do you follow on-time delivery date?

Yes, we are committed to deliver good quality products on-time to our customers. During unforeseen circumstances which results to changes in the delivery schedule, we further inform in advance and offer alternative arrangements.

a

What logistics is applicable to deliver items? How many days?

We deliver via air or sea freight depending on customer’s request.
Local shipments via air normally arrives 1-3 days after departure while export air
shipments take 2-4 days.
The sea shipment lead time depends whether it will be shipped via LCL or FCL freight
conditions.
Regardless, we make necessary adjustments with our departure schedule in order to
cater customer’s ETA schedule request.

a

Where are your customers located?

We are currently serving 37 customers in 10 different countries from Asia, Europe and
North America.

a

How do you forecast the materials for multiple items at once?

Our standard lead time from PO receiving to delivery is 3 months (although this could
vary due to few factors such as PO volume, customer requests, capacity restrictions,
etc.). The 3-month lead time is inclusive of 2 months material procurement time and 1
month processing time. This standard is communicated to customers so they can
arrange PO and forecast information accordingly in consideration of this information.

PLATING SURFACE TREATMENT

a

Is it possible to apply anodizing on a die-cast item?

Yes, it is possible

a

Can you hold an anti-reflective surface with anodizing on die-cast item?

We have available soft etching process to results to anti-reflective anodized finished

a

Is color anodizing available in your line?

Yes, but the colors available are clear, gray and black.

INSPECTION AND QUALITY CONTROL

a

What are your countermeasures to reduce defect rate?

Defect rate reduction is done in several ways as follows:

  1. When the defect rate is tolerable (that is, within the AQL or the “Acceptable
    Quality Level”), the data is recorded and put under monitoring.
  2. When the defect rate is not tolerable (in this case, it is above the AQL), the
    problem is reported in a “LOT OUT” procedure for the concerned entity to
    investigate the root cause and implement measures.
  3. On a monthly basis, the defect rate data is gathered and analyze with the use of
    the PARETO graph. The top 5 problems are identified. The top five problems are
    then acted upon with measures implemented and monitored for improvement in
    the succeeding months. This is reported in a monthly quality meeting and is
    discussed for further improvement action.
a

What measuring machines/equipment do you use? And how precise is it?

Our measurement process uses different measuring equipment depending on each
specific customer requirements. For common measurement, calipers, micrometers and
different kinds of gauges are used. For dimensions requiring high precision, we are using
the state of the art 3D measuring machine (CMM, Coordinate Measuring Machines),
High Precision/High Magnification Measuring Microscopes, and recently with the latest
CMM with scanning capability.

3D PRINTING

a

What are the limitations of the 3D Printer?

The size of the item that can be printed, the hardness of materials, plastic may vary in
strength capacity and may not be the best for some components.

a

How do you connect 3D printing to your process?

Prototyping and making of jigs and fixtures.

TOOL MAKING

a

What kind of machine do you use for tool making?

We are using a CINCOM CG7 Conventional Machine for carbide and compax material, NZX-3 (PCD-PCBN GRINDING MACHINE) for compax material only and Cemented Carbide Tool Grinder for cutting tools.

a

What kind of tool are you capable to make?

Based on the machines that we are using right now, we are capable to make brazed
cutting tools which are PCD/COMPAX and CARBIDE material and cutting tools used in a
Lathe Machine.

JIG DESIGN

a

How long will it take to design a jig?

It depends on the form, size, shape and product specifications. For example, strict
product with complex shape product design would take 6-12 hours to design and simple
product would take 2-3 hours to design.

a

What kind of material is used in jig making?

The material we use in Jig making are JIS A5056 (Aluminum), JIS S45C (Mild Steel), JIS
SKD61 (Steel), Polyoxymethylene (POM), and Bakelite material.

a

Where do you fabricate your jigs/fixtures?

We fabricate our jigs at our Machine Shop area since we are equipped with conventional
machines both lathe and milling, as well as CNC also both lathe and machining centers.

OPTICAL PROCESS

a

What specific application of lenses do you process?

Stereozoom Microscopes (Objective and Ocular Lenses), Factory Automation
Camera, Cinema/Projector, Camera Accessories, Riflescopes, Binoculars, etc.

a

What range of lens sizes you are capable of producing?

From 3mm to 66mm Diameter lenses

a

Since lens products are very sensitive to any chemical reactions, how do you maintain the products to be in its good quality?

Through time-to-time checking of chemical concentration, and maintaining proper
temperature and humidity of the area.

a

How do you dispose your hazardous wastes and by-products?

Since were using lot of chemicals and other consumables for the processing, it is part of our commitment to keep our environment safe and clean by our water treatment facilities, timely and efficient waste collection by our government accredited third party collectors for the disposal of our solid wastes.

OTHERS

a

Do you have any activities being practices to improve your process?

Yes, we have activities in the company like Quality Meetings, CFT Meetings, Trainings, Orientations and Kaizen Activities.

a

Can we expect some support service during product development process? ( Such as input or opinion on die-cast item design for better productivity or cost saving, etc.)

Yes, MMTI have technical support personnel’s who are specialized in different specific
fields and are experts such as Die Mold Maker Engineer and Magma Simulation in-
charge, Die Cast Specialist, Product Engineering Manager, etc. Also, if there are other
concerns or problems that are beyond their skills and capabilities, MMTI have other
technical experts to consult at Japan.