Case Study 01: LATCH PIN BODY

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1 – INTRODUCTION

DEFINITION OF INITIAL PROBLEM

The customer developed an innovative system for valve actuation in automotive combustion engines. The system adopts a component with complex prismatic geometry, produced by sintering.
Pettarini received a request for an evaluation of the sintered component and identified the following critical issues:
Poor precision and difficult tolerance management of the component;
Difficulties in producing complex shapes;
Costs and low efficiency of the production process.

How can components with complex prismatic geometries be manufactured with high levels of precision and within tight tolerances?
Which production process can outperform sintering in efficiency and cost-effectiveness?

2 – HOW WE WORK

APPROACH

In order to meet the high precision and quality standards of the automotive market, Pettarini plans to design and manufacture the Body Latch Pin by cold wire forming.

We proceed with the feasibility analysis using a finite element simulator.
The most suitable materials and necessary equipment are defined.
The production process and work cycles are planned.

3 – SOLUTION

PROPOSAL

Pettarini studies, designs and engineers a new solution for the Body Latch Pin. The solution is developed thanks to the experience gained in cold wire forming and approved by the customer.

Pettarini offers Body Latch Pin sampling by means of a cold forming process and subsequent machining. At the same time, each step in the process is validated by the Quality Department.

The result of this activity are the first prototypes produced through the new process and design.

4 – RESULTS

WHAT WE HAVE ACHIEVED

The Pettarini solution:

It respects all geometric and dimensional characteristics required by the customer;
It features an improved surface finish to ensure a longer-lasting Body Latch Pin;
It reduces production costs and increases production efficiency.

The Pettarini Body Latch Pin is more efficient, durable and economical.

TO KNOW BETTER HOW WE WORK

RELATED CASE STUDIES

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Frequently asked questions

What is the minimum batch size I can apply for cold stamping production? +

Minimum batches can start from 30,000 pieces, depending on the complexity and types of parts. In general, the ideal batch size to maximise production efficiency is 250,000 pieces.

What is your production capacity? +

Depends on the type and complexity of the item. Generally, our capacity is more than 10,000,000 pcs.

What materials do you use for production? +

Carbon steels (C4C; C10C; C35C; etc.).

Boron alloyed steels (23MnB4; 30MnB4; etc.).

Chrome alloyed steels (16NiCr4;42CrMo4; 100Cr6; etc.).

Austenitic stainless steel (AISI304, AISI316, etc.)

Titanium (TI6AL4V/TI6A; etc.)

Waspaloy (AMS 5708, 2.4654 / UNS N07001)

Nickel-based alloys (Inconel, Monel, A286; etc.).

Aluminium and its alloys

Brass and its alloys

What dimensions can I request for the final product? +

The diameter of our products can vary from 1mm to 40mm.

What lengths are you able to work? +

We can produce from a minimum length of 0.6 mm up to a maximum length of 160 mm.

What level of tolerance is achieved by cold stamping? +

We are able to work within dimensional tolerances in the range of hundredths (0.02 to 0.05 mm).

Do you guarantee heat treatment in the production process? +

Yes, we can guarantee heat treatment by entrusting it to qualified suppliers.

Are coatings and surface treatments part of your offer? +

Yes, we can guarantee coatings and surface treatments.

Do you have stock of standard products? +

Yes, we have standard product availability on certain types of items. Please contact us for more information.