Although there are many companies that provide mold production services, there are only few happy
customers. The reason is that these companies fail to keep up with technological developments and
produce inefficient molds with wrong methods. The customers get very different offers for the same
part. This naturally confuses them in the decision process.
Tulga offers you mold design and production services particularly in injection molding. It analyzes
your needs with the most up-to- date methods and does not strain your budget with unnecessary
costs. We offer mold design and production services that will reach beyond your expectations with
How do we work?
We evaluate all conditions on computer, but we may still have to take initiative and renew some
elements based on our experience. As there are many factors in mold production and injection, each
one of them should be considered carefully. We determine the design method and elements to be
used according to your quality expectations.
The factors that should be primarily identified in mold design phase:
Type of raw material
Color agent / Masterbatch
Surfaces to be grained
Grain type and depth
Parting line, slider, and ejector mark locations
Weld line locations
Mold steels are chosen according to the selected criteria. The 3D model is scaled in line with the
shrinkage ratio of the plastic raw-material to be used. Parting is done according to desired gate and
parting line locations. Mold cavities are formed depending on the production quantity. Runner is
designed according to the product material, estimated shot quantity, number of mold cavities, part
geometry, size, and mold fill simulations. Sliders, ejector locations, and their kinematic mechanisms
are determined. Inserts are designed to facilitate the product’s release from the mold, polishing and
machining, and for the areas that may be affected by wear. Then the cooling system is designed. The
places of the venting grooves are determined. After the appropriate mold set standards are selected,
cores and cavities are inserted into the mold set.
Once the solutions provided for the possible problems in the moldability analysis stage are applied
onto the design, production process begins as the next step.
We use licensed CATIA V5 software in all our design processes.
Although you do the most accurate mold design, you cannot have the results you want if you don’t
use appropriate machining conditions.
Machining methods, the quality of the cutting tool and tool holder, the experience of operator and
mold making master, and the regular maintenance of the CNC machining center are only a few of the
criteria necessary for the perfect result.
We produce molds by processing mold cores and cavities with CNC machining center, EDM (electrical
discharge machining), wire erosion, milling machine, lathe and other machining methods.
Before taking the mold to mass production, we do certain checks and tests. After they are complete,
we inject initial samples and save optimum injection parameters related the best shot we reach in
order to maintain a standard in producing identical parts.
In this process, we maintain the production process and the quality level constant through the
statistical process control method. We take defective shots in other words, scraps under control and
reduce the possibility of these defective parts mixing into the serial production assembly line.
We also prevent time losses by quickly responding to the problems that may occur during molding,
and thus minimize the effects of those problems on the mass production process.
Tulga also provides contract injection mold service for designs come from customers as well as for
the projects whose design and development are conducted by Tulga itself.