ENCN
Get in touch

Menu

Home  >  Products  >  Traditional Automotive Mold Base
Gearbox Housing
Gearbox Housing
Gearbox Housing
Gearbox Housing
Gearbox Housing
Gearbox Housing
Gearbox Housing
Customer of this high-pressure die-casting mold: A global top 10 automotive parts manufacturer.
Products produced by this high-pressure die-casting mold: High-precision, high-strength aluminum die-cast transmission housings.
To ensure stable, efficient, and high first-pass yield in die-casting production, as well as extended mold service life, a high-strength, high-toughness, and high-precision mold base is essential to safeguard the mold!
Send E-mail

Balancing the customer's procurement costs and manufacturing requirements, our company has selected a high-performance P20 forged material, jointly developed with our material supplier. This national-standard P20 steel ingot undergoes triple upsetting and drawing forging, along with heat treatment processes, achieving outstanding mechanical toughness—with a V-notch impact value (J/cm³) exceeding 50 at 20°C room temperature.

In terms of material performance, it fully meets the customer's requirement of "one set of mold bases (moving & fixed) supporting three sets of mold cores"!


Parameters

The fixed mold base size of this mold base is: 1805X1811X611;

The movable mold base size is: 1670X1580X585.

The customer requires the parallelism between the mold opening surface and the bottom surface to be ±0.05MM, the perpendicularity of the inner frame to be ±0.02MM, the positional tolerance of the positioning hole frame to be ±0.02MM, and the flatness of the mold base parting surface and other surfaces within 300MM to be ±0.02MM.

This requires our company to continuously detect the positional tolerance and flatness of other processing surfaces against the reference surface using a dial indicator during the processing, and then combine with the semi-finished product detection values of the three-coordinate measuring machine to finally meet the customer's requirements!


Solutions to the Processing Difficulties of This Mold Base:

During the processing of the fixed mold base, a processing difficulty was found: the machining depth is 250mm, the avoidable distance is only 24mm, and the D12 fine hole requires a dimension of 12-12.02 with a positioning accuracy of ±0.02.

To ensure that the customer's processing requirements are met, our company has developed an anti-vibration pull-back tool holder, which is used in conjunction with alloy drills and alloy reamers for processing.


Core Technologies:

The anti-vibration pull-back tool holder, with a length of 300mm and a diameter of only 24mm, is made of full tungsten carbide steel, featuring high rigidity. It ensures that the tool deflection within a depth of 250mm is controlled within 0.01mm, providing stable processing support.

For the cutting tools matched with the tool holder, we adopt a two-process machining method: first, use a D11.8 alloy drill for milling, and then finish the processing with a D12H7 alloy reamer.


Process Description:

After installing the tool, perform a run-out test on the tool holder and alloy reamer using a dial indicator to ensure the swing is within 0.01mm.

During the alloy reaming process, measure continuously while machining to ensure the hole diameter is approximately 12.02mm.


Threaded Hole Detection via Go/No-Go Gauges and Perpendicularity Check:

Thread manufacturing is crucial for high-precision mold bases, acting like the capillaries of the human body to ensure the safe, efficient, and stable operation of the mold base.

View More
Popular Products
V10 Cylinder Block Mold Frame
V10 Cylinder Block Mold Frame
With the evolution of marine power systems toward higher power density and lightweight design, the V10 engine has secured a core position in the fields of oceangoing freighters, engineering vessels, and yachts due to its compact structure and high power output characteristics. The cylinder blocks of such engines are required to withstand extreme thermal loads and mechanical stresses, and the performance of their die-casting mold frames directly determines the precision of the castings and the production yield.
V10 Cylinder Block Mold Frame
V10 Cylinder Block Mold Frame
With the evolution of marine power systems toward higher power density and lightweight design, the V10 engine has secured a core position in the fields of oceangoing freighters, engineering vessels, and yachts due to its compact structure and high power output characteristics. The cylinder blocks of such engines are required to withstand extreme thermal loads and mechanical stresses, and the performance of their die-casting mold frames directly determines the precision of the castings and the production yield.
V10 Cylinder Block Mold Frame
V10 Cylinder Block Mold Frame
With the evolution of marine power systems toward higher power density and lightweight design, the V10 engine has secured a core position in the fields of oceangoing freighters, engineering vessels, and yachts due to its compact structure and high power output characteristics. The cylinder blocks of such engines are required to withstand extreme thermal loads and mechanical stresses, and the performance of their die-casting mold frames directly determines the precision of the castings and the production yield.
V10 Cylinder Block Mold Frame
V10 Cylinder Block Mold Frame
With the evolution of marine power systems toward higher power density and lightweight design, the V10 engine has secured a core position in the fields of oceangoing freighters, engineering vessels, and yachts due to its compact structure and high power output characteristics. The cylinder blocks of such engines are required to withstand extreme thermal loads and mechanical stresses, and the performance of their die-casting mold frames directly determines the precision of the castings and the production yield.