In the world of modern manufacturing, Computer Numerical Control
(CNC) machining has revolutionized the production of precision
mechanical hardware. One of the key applications of CNC machining
is in creating stainless steel precision castings for the
automotive industry. This article will delve into the various
aspects of CNC turning parts for auto, including the material used,
drawing formats, production process, surface roughness, treatments,
inspection instruments, and its wide range of applications.
Stainless steel is the material of choice for CNC turning parts in
the automotive sector due to its excellent mechanical properties,
corrosion resistance, and longevity. The most commonly used
stainless steel grades for precision castings in the auto industry
include 304, 316, 410, and 17-4PH.
CNC machining services require precise and accurate engineering
drawings to guide the manufacturing process. These drawings are
typically provided in standard formats like DWG, DXF, or PDF. They
contain all the essential details, dimensions, and tolerances
necessary for creating the desired CNC turning parts.
The production process of stainless steel precision castings
involves several steps:
Surface roughness is a critical aspect of precision castings,
especially for auto parts, as it affects friction, wear resistance,
and aesthetics. The surface roughness is usually measured in terms
of Ra (arithmetic average roughness) or RMS (root mean square)
values. CNC machining can achieve various surface finishes, ranging
from rough to mirror-like, depending on the application
requirements.
After CNC turning, additional surface treatments like passivation,
electropolishing, or coating may be applied to enhance corrosion
resistance, appearance, and overall performance.
Accurate inspection instruments are vital to ensure the quality and
precision of CNC turning parts. Commonly used inspection
instruments include Coordinate Measuring Machines (CMM), optical
comparators, surface roughness testers, calipers, micrometers, and
height gauges. These instruments help measure dimensions,
tolerances, and surface characteristics of the precision castings.
CNC turning parts find wide applications in the automotive
industry, including but not limited to:
The use of CNC machining in the automotive sector ensures the
production of high-quality, reliable, and precise components that
contribute to the overall performance and safety of vehicles.
TORICH is an enterprise that has been producing precision steel
pipes and steel pipe processing for over 20 years, with a factory
area of approximately 20000 square meters
The main products produced are carbon steel and alloy steel grade
seamless steel pipes, welded precision steel pipes, DOM steel
pipes, seamless and welded stainless steel pipes.And our separate
workshop also produce machined cast iron parts and cast steel
parts, as well ad customized precision parts and difficult
precision parts. Our strength is with in our ability to produce
metal parts of higher quality control in an integrated process,
from mapping and mould design, to casting, forging, machining, heat
treatment, surface treatment, assembly and testing.
TORICH team is familiar with the quality requirements and process standards of
precision parts and steel tubes of leading industrial companies at home and abroad, constantly optimizes the production and management level, and constantly looks for like-minded excellent
suppliers, which enable us to reduce the production cost and have a comparative advantage over many of our competitors.
In the field of processing, TORICH has 18 sets 4-axis/3-axis CNC
machines and over 30 sets of CNC lathers. The machining center is
capable of machining 1100x600x800mm parts and the CNC lathes are
capable of processing 550x1500mm parts. We specialize in machining
stainless steel, alloy steel and other hard metals, as well as
carbon steel, aluminium, and copper, with a dimensional accuracy of
0.01mm.
As of 2023, TORICH has perfectly cooperated with more than 50
countries, including Russia, India, Australia, the United Kingdom,
France, the United States, Canada, Brazil, and Egypt. Quality and
reputation are always our first concerns, with the aim of well
serving every customer who trusts in us. TORICH looks forward to
partnering with customers all over the world.




1. Are you manufacturer or trader ?
TORICH is manufacturer based trading company.
2. How can we get samples ?
Ready to ship samples can be delivered within 3 working days,
developing samples need to be confirmed with our engineer and sales
team.
3.How can I get a quote?
Detailed drawings (PDF/STEP/IGS/DWG...) with material, quantity and
surface treatment information.
4. Can I get a quote without drawings?
Sure, we appreciate to receive your samples, pictures or drafts
with detailed dimensions for accurate quotation.
5. What is the lead time?
15-60 day depending on different order quantity and products.
6. Can you provide samples before mass production?
Sure, sample fee is needed, will be returned when mass production
if possible.
7. What is your payment terms?
30% deposit, the balance 70% before shipping.
8. What is your packing method?
Safty and strong packing suitable for sea shipping and air
shipping.
9. What will you do if we receive poor quality parts?
Please kindly send us the pictures, our engineers will find the
solutions and remake them for you asap.